123531021434032 has 20 divisors (see below), whose sum is σ = 241537146270640. Its totient is φ = 61198854654528.

The previous prime is 123531021434017. The next prime is 123531021434057. The reversal of 123531021434032 is 230434120135321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35416002108 + ... + 35416005595.

It is an arithmetic number, because the mean of its divisors is an integer number (12076857313532).

Almost surely, 2^{123531021434032} is an apocalyptic number.

It is an amenable number.

123531021434032 is a deficient number, since it is larger than the sum of its proper divisors (118006124836608).

123531021434032 is a wasteful number, since it uses less digits than its factorization.

123531021434032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70832007820 (or 70832007814 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 123531021434032 its reverse (230434120135321), we get a palindrome (353965141569353).

The spelling of 123531021434032 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, twenty-one million, four hundred thirty-four thousand, thirty-two".