312311111300 has 72 divisors (see below), whose sum is σ = 693701079456. Its totient is φ = 121979612160.

The previous prime is 312311111249. The next prime is 312311111341. The reversal of 312311111300 is 3111113213.

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, 15654932 + ... + 15674868.

Almost surely, 2^312311111300 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 312311111300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346850539728).

312311111300 is an abundant number, since it is smaller than the sum of its proper divisors (381389968156).

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

312311111300 is a wasteful number, since it uses less digits than its factorization.

312311111300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23637 (or 23630 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 312311111300 its reverse (3111113213), we get a palindrome (315422224513).

The spelling of 312311111300 in words is "three hundred twelve billion, three hundred eleven million, one hundred eleven thousand, three hundred".