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123010121331 = 32129231057633
BaseRepresentation
bin111001010001111111…
…0010111111001110011
3102202111210020121200200
41302203332113321303
54003411042340311
6132302101450243
711613206531226
oct1624376277163
9382453217620
10123010121331
11481940088a9
121ba0ba10983
13b7a4a03756
145d4d0255bd
1532ee398556
hex1ca3f97e73

123010121331 has 12 divisors (see below), whose sum is σ = 177695203608. Its totient is φ = 82000324224.

The previous prime is 123010121329. The next prime is 123010121341. The reversal of 123010121331 is 133121010321.

123010121331 is a `hidden beast` number, since 1 + 230 + 101 + 2 + 1 + 331 = 666.

It is not a de Polignac number, because 123010121331 - 21 = 123010121329 is a prime.

It is a super-2 number, since 2×1230101213312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123010121321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412510 + ... + 645123.

It is an arithmetic number, because the mean of its divisors is an integer number (14807933634).

Almost surely, 2123010121331 is an apocalyptic number.

123010121331 is a deficient number, since it is larger than the sum of its proper divisors (54685082277).

123010121331 is a wasteful number, since it uses less digits than its factorization.

123010121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070562 (or 1070559 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123010121331 its reverse (133121010321), we get a palindrome (256131131652).

The spelling of 123010121331 in words is "one hundred twenty-three billion, ten million, one hundred twenty-one thousand, three hundred thirty-one".

Divisors: 1 3 9 12923 38769 116307 1057633 3172899 9518697 13667791259 41003373777 123010121331