31212010204 has 48 divisors (see below), whose sum is σ = 55977999840. Its totient is φ = 15224601600.

The previous prime is 31212010189. The next prime is 31212010211. The reversal of 31212010204 is 40201021213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7691344 + ... + 7695400.

It is an arithmetic number, because the mean of its divisors is an integer number (1166208330).

Almost surely, 2^31212010204 is an apocalyptic number.

It is an amenable number.

31212010204 is a deficient number, since it is larger than the sum of its proper divisors (24765989636).

31212010204 is a wasteful number, since it uses less digits than its factorization.

31212010204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438 (or 4436 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31212010204 its reverse (40201021213), we get a palindrome (71413031417).

The spelling of 31212010204 in words is "thirty-one billion, two hundred twelve million, ten thousand, two hundred four".