123531024302542 has 16 divisors (see below), whose sum is σ = 196340488801632. Its totient is φ = 58089533816320.

The previous prime is 123531024302531. The next prime is 123531024302591. The reversal of 123531024302542 is 245203420135321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334731618 + ... + 1334824165.

It is an arithmetic number, because the mean of its divisors is an integer number (12271280550102).

Almost surely, 2^{123531024302542} is an apocalyptic number.

123531024302542 is a deficient number, since it is larger than the sum of its proper divisors (72809464499090).

123531024302542 is a wasteful number, since it uses less digits than its factorization.

123531024302542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669557163.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 123531024302542 its reverse (245203420135321), we get a palindrome (368734444437863).

The spelling of 123531024302542 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, twenty-four million, three hundred two thousand, five hundred forty-two".