111356401256 has 64 divisors (see below), whose sum is σ = 227116032000. Its totient is φ = 50991353280.

The previous prime is 111356401253. The next prime is 111356401259. The reversal of 111356401256 is 652104653111.

It is an interprime number because it is at equal distance from previous prime (111356401253) and next prime (111356401259).

It is not an unprimeable number, because it can be changed into a prime (111356401253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4544285 + ... + 4568723.

It is an arithmetic number, because the mean of its divisors is an integer number (3548688000).

Almost surely, 2^111356401256 is an apocalyptic number.

It is an amenable number.

111356401256 is an abundant number, since it is smaller than the sum of its proper divisors (115759630744).

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

111356401256 is a wasteful number, since it uses less digits than its factorization.

111356401256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25462 (or 25458 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 111356401256 in words is "one hundred eleven billion, three hundred fifty-six million, four hundred one thousand, two hundred fifty-six".