31321300412 has 24 divisors (see below), whose sum is σ = 58047509520. Its totient is φ = 14736646400.

The previous prime is 31321300397. The next prime is 31321300457. The reversal of 31321300412 is 21400312313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343514 + ... + 425022.

It is an arithmetic number, because the mean of its divisors is an integer number (2418646230).

Almost surely, 2^31321300412 is an apocalyptic number.

It is an amenable number.

31321300412 is a deficient number, since it is larger than the sum of its proper divisors (26726209108).

31321300412 is a wasteful number, since it uses less digits than its factorization.

31321300412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87181 (or 87179 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31321300412 its reverse (21400312313), we get a palindrome (52721612725).

The spelling of 31321300412 in words is "thirty-one billion, three hundred twenty-one million, three hundred thousand, four hundred twelve".