31201313204 has 24 divisors (see below), whose sum is σ = 54881164800. Its totient is φ = 15521081760.

The previous prime is 31201313141. The next prime is 31201313233. The reversal of 31201313204 is 40231310213.

It is a congruent number.

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, 1306289 + ... + 1329959.

It is an arithmetic number, because the mean of its divisors is an integer number (2286715200).

Almost surely, 2^31201313204 is an apocalyptic number.

It is an amenable number.

31201313204 is a deficient number, since it is larger than the sum of its proper divisors (23679851596).

31201313204 is a wasteful number, since it uses less digits than its factorization.

31201313204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25343 (or 25341 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31201313204 its reverse (40231310213), we get a palindrome (71432623417).

The spelling of 31201313204 in words is "thirty-one billion, two hundred one million, three hundred thirteen thousand, two hundred four".