31301333012 has 18 divisors (see below), whose sum is σ = 55721523018. Its totient is φ = 15385394128.

The previous prime is 31301332999. The next prime is 31301333057. The reversal of 31301333012 is 21033310313.

It can be written as a sum of positive squares in only one way, i.e., 17874085636 + 13427247376 = 133694^2 + 115876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110083 + ... + 1137930.

Almost surely, 2^31301333012 is an apocalyptic number.

It is an amenable number.

31301333012 is a deficient number, since it is larger than the sum of its proper divisors (24420190006).

31301333012 is a wasteful number, since it uses less digits than its factorization.

31301333012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248135 (or 2248074 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31301333012 its reverse (21033310313), we get a palindrome (52334643325).

The spelling of 31301333012 in words is "thirty-one billion, three hundred one million, three hundred thirty-three thousand, twelve".