256113011013 has 16 divisors (see below), whose sum is σ = 343075727616. Its totient is φ = 169947993600.

The previous prime is 256113010939. The next prime is 256113011041. The reversal of 256113011013 is 310110311652.

It is not a de Polignac number, because 256113011013 - 2²⁹ = 255576140101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256113011093) 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, 327081 + ... + 786897.

It is an arithmetic number, because the mean of its divisors is an integer number (21442232976).

Almost surely, 2^256113011013 is an apocalyptic number.

It is an amenable number.

256113011013 is a deficient number, since it is larger than the sum of its proper divisors (86962716603).

256113011013 is a wasteful number, since it uses less digits than its factorization.

256113011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460684.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 256113011013 its reverse (310110311652), we get a palindrome (566223322665).

The spelling of 256113011013 in words is "two hundred fifty-six billion, one hundred thirteen million, eleven thousand, thirteen".