123031134345032 has 32 divisors (see below), whose sum is σ = 232885041417720. Its totient is φ = 60930928680960.

The previous prime is 123031134345023. The next prime is 123031134345139. The reversal of 123031134345032 is 230543431130321.

It can be written as a sum of positive squares in 4 ways, for example, as 35415281753476 + 87615852591556 = 5951074^2 + 9360334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123031134344983 and 123031134345001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154104569 + ... + 154900872.

Almost surely, 2^{123031134345032} is an apocalyptic number.

It is an amenable number.

123031134345032 is a deficient number, since it is larger than the sum of its proper divisors (109853907072688).

123031134345032 is a wasteful number, since it uses less digits than its factorization.

123031134345032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309005921 (or 309005917 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 123031134345032 its reverse (230543431130321), we get a palindrome (353574565475353).

The spelling of 123031134345032 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-four million, three hundred forty-five thousand, thirty-two".