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123310130130220 = 2251111713209149159
BaseRepresentation
bin11100000010011001100000…
…100000001110110100101100
3121011121022222222121021100211
4130002121200200032310230
5112130303121303131340
61114131520341232204
734654601656101145
oct3402314040166454
9534538888537324
10123310130130220
1136321594851a30
12119b63b5102664
1353a6131708767
142264356622acc
15e3c8a5a6d5ea
hex70266080ed2c

123310130130220 has 96 divisors (see below), whose sum is σ = 282823540876800. Its totient is φ = 44787493670400.

The previous prime is 123310130130191. The next prime is 123310130130251. The reversal of 123310130130220 is 22031031013321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123310130130191 and 123310130130200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 826628001 + ... + 826777159.

It is an arithmetic number, because the mean of its divisors is an integer number (2946078550800).

Almost surely, 2123310130130220 is an apocalyptic number.

123310130130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123310130130220 is an abundant number, since it is smaller than the sum of its proper divisors (159513410746580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123310130130220 is a wasteful number, since it uses less digits than its factorization.

123310130130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153559 (or 153557 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123310130130220 its reverse (22031031013321), we get a palindrome (145341161143541).

The spelling of 123310130130220 in words is "one hundred twenty-three trillion, three hundred ten billion, one hundred thirty million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1171 2342 3209 4684 5855 6418 11710 12836 12881 16045 23420 25762 32090 35299 51524 64180 64405 70598 128810 141196 149159 176495 257620 298318 352990 596636 705980 745795 1491590 1640749 2983180 3281498 3757739 6562996 7515478 8203745 15030956 16407490 18788695 32814980 37577390 41335129 75154780 82670258 165340516 174665189 206675645 349330378 413351290 478651231 698660756 826702580 873325945 957302462 1746651890 1914604924 1921317079 2393256155 3493303780 3842634158 4786512310 5265163541 7685268316 9573024620 9606585395 10530327082 19213170790 21060654164 26325817705 38426341580 52651635410 105303270820 560500591501 1121001183002 2242002366004 2802502957505 5605005915010 6165506506511 11210011830020 12331013013022 24662026026044 30827532532555 61655065065110 123310130130220