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123130321213122 = 23217911381920239
BaseRepresentation
bin11011111111110010000011…
…000011101001011011000010
3121010222010212210101212120200
4123333302003003221123002
5112114331344212304442
61113513142204150030
734635605100366066
oct3377620303513302
9533863783355520
10123130321213122
1136262304362203
1211987593538316
1353921a7548822
142259779d67aa6
15e37d8000c34c
hex6ffc830e96c2

123130321213122 has 24 divisors (see below), whose sum is σ = 266797258216320. Its totient is φ = 41041148775480.

The previous prime is 123130321213043. The next prime is 123130321213187. The reversal of 123130321213122 is 221312123031321.

123130321213122 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 3 + 0 + 321 + 21 + 312 + 2 = 666.

It is a super-2 number, since 2×1231303212131222 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190637722 + ... + 191282517.

It is an arithmetic number, because the mean of its divisors is an integer number (11116552425680).

Almost surely, 2123130321213122 is an apocalyptic number.

123130321213122 is an abundant number, since it is smaller than the sum of its proper divisors (143666937003198).

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

123130321213122 is a wasteful number, since it uses less digits than its factorization.

123130321213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381938158 (or 381938155 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 123130321213122 its reverse (221312123031321), we get a palindrome (344442444244443).

The spelling of 123130321213122 in words is "one hundred twenty-three trillion, one hundred thirty billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 17911 35822 53733 107466 161199 322398 381920239 763840478 1145760717 2291521434 3437282151 6874564302 6840573400729 13681146801458 20521720202187 41043440404374 61565160606561 123130321213122