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122131313310 = 23517041238897
BaseRepresentation
bin111000110111110010…
…1111111001010011110
3102200020112121112201110
41301233211333022132
54000111104011220
6132034545522450
711552346014556
oct1615745771236
9380215545643
10122131313310
1147882a40386
121b805643426
13b694919bc6
145ca8424166
15329c155be0
hex1c6f97f29e

122131313310 has 32 divisors (see below), whose sum is σ = 293133579552. Its totient is φ = 32566302720.

The previous prime is 122131313303. The next prime is 122131313329. The reversal of 122131313310 is 13313131221.

It is a happy number.

It is a super-2 number, since 2×1221313133102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391782 + ... + 630678.

It is an arithmetic number, because the mean of its divisors is an integer number (9160424361).

Almost surely, 2122131313310 is an apocalyptic number.

122131313310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122131313310 is an abundant number, since it is smaller than the sum of its proper divisors (171002266242).

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

122131313310 is a wasteful number, since it uses less digits than its factorization.

122131313310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255948.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 122131313310 its reverse (13313131221), we get a palindrome (135444444531).

The spelling of 122131313310 in words is "one hundred twenty-two billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 17041 34082 51123 85205 102246 170410 238897 255615 477794 511230 716691 1194485 1433382 2388970 3583455 7166910 4071043777 8142087554 12213131331 20355218885 24426262662 40710437770 61065656655 122131313310