311124401112 has 32 divisors (see below), whose sum is σ = 888926860800. Its totient is φ = 88892685984.

The previous prime is 311124401111. The next prime is 311124401153. The reversal of 311124401112 is 211104421113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311124401111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925965312 + ... + 925965647.

It is an arithmetic number, because the mean of its divisors is an integer number (27778964400).

Almost surely, 2^311124401112 is an apocalyptic number.

It is an amenable number.

311124401112 is an abundant number, since it is smaller than the sum of its proper divisors (577802459688).

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

311124401112 is a wasteful number, since it uses less digits than its factorization.

311124401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851930975 (or 1851930971 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 311124401112 its reverse (211104421113), we get a palindrome (522228822225).

The spelling of 311124401112 in words is "three hundred eleven billion, one hundred twenty-four million, four hundred one thousand, one hundred twelve".