15123113432 has 48 divisors (see below), whose sum is σ = 33305697360. Its totient is φ = 6418391616.

The previous prime is 15123113363. The next prime is 15123113449. The reversal of 15123113432 is 23431132151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146903 + ... + 227654.

It is an arithmetic number, because the mean of its divisors is an integer number (693868695).

Almost surely, 2^15123113432 is an apocalyptic number.

It is an amenable number.

15123113432 is an abundant number, since it is smaller than the sum of its proper divisors (18182583928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15123113432 is a wasteful number, since it uses less digits than its factorization.

15123113432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374680 (or 374669 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

Adding to 15123113432 its reverse (23431132151), we get a palindrome (38554245583).

The spelling of 15123113432 in words is "fifteen billion, one hundred twenty-three million, one hundred thirteen thousand, four hundred thirty-two".