31231010204 has 24 divisors (see below), whose sum is σ = 55720780080. Its totient is φ = 15312122496.

The previous prime is 31231010177. The next prime is 31231010243. The reversal of 31231010204 is 40201013213.

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 7 ways as a sum of consecutive naturals, for example, 72977 + ... + 260360.

It is an arithmetic number, because the mean of its divisors is an integer number (2321699170).

Almost surely, 2^31231010204 is an apocalyptic number.

It is an amenable number.

31231010204 is a deficient number, since it is larger than the sum of its proper divisors (24489769876).

31231010204 is a wasteful number, since it uses less digits than its factorization.

31231010204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333797 (or 333795 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31231010204 its reverse (40201013213), we get a palindrome (71432023417).

The spelling of 31231010204 in words is "thirty-one billion, two hundred thirty-one million, ten thousand, two hundred four".