311113213400 has 48 divisors (see below), whose sum is σ = 789096246840. Its totient is φ = 113132076800.

The previous prime is 311113213363. The next prime is 311113213429. The reversal of 311113213400 is 4312311113.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70705349 + ... + 70709748.

Almost surely, 2^311113213400 is an apocalyptic number.

It is an amenable number.

311113213400 is an abundant number, since it is smaller than the sum of its proper divisors (477983033440).

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

311113213400 is a wasteful number, since it uses less digits than its factorization.

311113213400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141415124 (or 141415115 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311113213400 its reverse (4312311113), we get a palindrome (315425524513).

The spelling of 311113213400 in words is "three hundred eleven billion, one hundred thirteen million, two hundred thirteen thousand, four hundred".