31104812 has 6 divisors (see below), whose sum is σ = 54433428. Its totient is φ = 15552404.

The previous prime is 31104779. The next prime is 31104833. The reversal of 31104812 is 21840113.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3888098 + ... + 3888105.

It is an arithmetic number, because the mean of its divisors is an integer number (9072238).

Almost surely, 2^31104812 is an apocalyptic number.

It is an amenable number.

31104812 is a deficient number, since it is larger than the sum of its proper divisors (23328616).

31104812 is a wasteful number, since it uses less digits than its factorization.

31104812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776207 (or 7776205 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 31104812 is about 5577.1688158061. The cubic root of 31104812 is about 314.4917039608.

Adding to 31104812 its reverse (21840113), we get a palindrome (52944925).

The spelling of 31104812 in words is "thirty-one million, one hundred four thousand, eight hundred twelve".