31204231432 has 16 divisors (see below), whose sum is σ = 63826837200. Its totient is φ = 14183741520.

The previous prime is 31204231403. The next prime is 31204231439. The reversal of 31204231432 is 23413240213.

It is a junction number, because it is equal to n+sod(n) for n = 31204231397 and 31204231406.

It is not an unprimeable number, because it can be changed into a prime (31204231439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177296682 + ... + 177296857.

It is an arithmetic number, because the mean of its divisors is an integer number (3989177325).

Almost surely, 2^31204231432 is an apocalyptic number.

It is an amenable number.

31204231432 is an abundant number, since it is smaller than the sum of its proper divisors (32622605768).

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

31204231432 is a wasteful number, since it uses less digits than its factorization.

31204231432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354593556 (or 354593552 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31204231432 its reverse (23413240213), we get a palindrome (54617471645).

The spelling of 31204231432 in words is "thirty-one billion, two hundred four million, two hundred thirty-one thousand, four hundred thirty-two".