123030255531502 has 32 divisors (see below), whose sum is σ = 201780909267840. Its totient is φ = 55795439562720.

The previous prime is 123030255531493. The next prime is 123030255531511. The reversal of 123030255531502 is 205135552030321.

It is an interprime number because it is at equal distance from previous prime (123030255531493) and next prime (123030255531511).

It is a super-2 number, since 2×123030255531502² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610807824 + ... + 611009212.

It is an arithmetic number, because the mean of its divisors is an integer number (6305653414620).

Almost surely, 2^{123030255531502} is an apocalyptic number.

123030255531502 is a deficient number, since it is larger than the sum of its proper divisors (78750653736338).

123030255531502 is a wasteful number, since it uses less digits than its factorization.

123030255531502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264528.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 123030255531502 in words is "one hundred twenty-three trillion, thirty billion, two hundred fifty-five million, five hundred thirty-one thousand, five hundred two".