31431373204 has 36 divisors (see below), whose sum is σ = 69802145280. Its totient is φ = 12245988720.

The previous prime is 31431373199. The next prime is 31431373213. The reversal of 31431373204 is 40237313413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7287124 + ... + 7291435.

It is an arithmetic number, because the mean of its divisors is an integer number (1938948480).

Almost surely, 2^31431373204 is an apocalyptic number.

It is an amenable number.

31431373204 is an abundant number, since it is smaller than the sum of its proper divisors (38370772076).

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

31431373204 is a wasteful number, since it uses less digits than its factorization.

31431373204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14578588 (or 14578579 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 31431373204 its reverse (40237313413), we get a palindrome (71668686617).

The spelling of 31431373204 in words is "thirty-one billion, four hundred thirty-one million, three hundred seventy-three thousand, two hundred four".