31013001200 has 60 divisors (see below), whose sum is σ = 74542317528. Its totient is φ = 12399609600.

The previous prime is 31013001191. The next prime is 31013001203. The reversal of 31013001200 is 210031013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013001203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936119 + ... + 968681.

Almost surely, 2^31013001200 is an apocalyptic number.

It is an amenable number.

31013001200 is an abundant number, since it is smaller than the sum of its proper divisors (43529316328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31013001200 is a wasteful number, since it uses less digits than its factorization.

31013001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34962 (or 34951 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31013001200 its reverse (210031013), we get a palindrome (31223032213).

The spelling of 31013001200 in words is "thirty-one billion, thirteen million, one thousand, two hundred".