31324440204 has 60 divisors (see below), whose sum is σ = 84101503024. Its totient is φ = 10159274016.

The previous prime is 31324440131. The next prime is 31324440221. The reversal of 31324440204 is 40204442313.

It is a happy number.

31324440204 is a `hidden beast` number, since 3 + 13 + 2 + 4 + 440 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1294504 + ... + 1318479.

Almost surely, 2^31324440204 is an apocalyptic number.

It is an amenable number.

31324440204 is an abundant number, since it is smaller than the sum of its proper divisors (52777062820).

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

31324440204 is a wasteful number, since it uses less digits than its factorization.

31324440204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613036 (or 2613025 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 31324440204 its reverse (40204442313), we get a palindrome (71528882517).

The spelling of 31324440204 in words is "thirty-one billion, three hundred twenty-four million, four hundred forty thousand, two hundred four".