31134120432 has 80 divisors (see below), whose sum is σ = 80805304320. Its totient is φ = 10329696000.

The previous prime is 31134120427. The next prime is 31134120443. The reversal of 31134120432 is 23402143113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15957057 + ... + 15959007.

It is an arithmetic number, because the mean of its divisors is an integer number (1010066304).

Almost surely, 2^31134120432 is an apocalyptic number.

It is an amenable number.

31134120432 is an abundant number, since it is smaller than the sum of its proper divisors (49671183888).

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

31134120432 is a wasteful number, since it uses less digits than its factorization.

31134120432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31134120432 its reverse (23402143113), we get a palindrome (54536263545).

The spelling of 31134120432 in words is "thirty-one billion, one hundred thirty-four million, one hundred twenty thousand, four hundred thirty-two".