31310300000 has 144 divisors (see below), whose sum is σ = 88056551520. Its totient is φ = 10734720000.

The previous prime is 31310299961. The next prime is 31310300041. The reversal of 31310300000 is 301313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 677636 + ... + 722364.

It is an arithmetic number, because the mean of its divisors is an integer number (611503830).

Almost surely, 2^31310300000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31310300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44028275760).

31310300000 is an abundant number, since it is smaller than the sum of its proper divisors (56746251520).

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

31310300000 is an frugal number, since it uses more digits than its factorization.

31310300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44771 (or 44743 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

Adding to 31310300000 its reverse (301313), we get a palindrome (31310601313).

The spelling of 31310300000 in words is "thirty-one billion, three hundred ten million, three hundred thousand".