113221306256 has 20 divisors (see below), whose sum is σ = 220591796400. Its totient is φ = 56294391072.

The previous prime is 113221306241. The next prime is 113221306259. The reversal of 113221306256 is 652603122311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (113221306259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19763426 + ... + 19769153.

It is an arithmetic number, because the mean of its divisors is an integer number (11029589820).

Almost surely, 2^113221306256 is an apocalyptic number.

113221306256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

113221306256 is a deficient number, since it is larger than the sum of its proper divisors (107370490144).

113221306256 is a wasteful number, since it uses less digits than its factorization.

113221306256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39532766 (or 39532760 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 113221306256 its reverse (652603122311), we get a palindrome (765824428567).

The spelling of 113221306256 in words is "one hundred thirteen billion, two hundred twenty-one million, three hundred six thousand, two hundred fifty-six".