2256323503313 has 4 divisors (see below), whose sum is σ = 2461443821808. Its totient is φ = 2051203184820.

The previous prime is 2256323503283. The next prime is 2256323503319. The reversal of 2256323503313 is 3133053236522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2256323503313 - 2²⁸ = 2256055067857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2256323503319) 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, 102560159231 + ... + 102560159252.

It is an arithmetic number, because the mean of its divisors is an integer number (615360955452).

Almost surely, 2^{2256323503313} is an apocalyptic number.

It is an amenable number.

2256323503313 is a deficient number, since it is larger than the sum of its proper divisors (205120318495).

2256323503313 is a wasteful number, since it uses less digits than its factorization.

2256323503313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205120318494.

The product of its (nonzero) digits is 291600, while the sum is 38.

Adding to 2256323503313 its reverse (3133053236522), we get a palindrome (5389376739835).

The spelling of 2256323503313 in words is "two trillion, two hundred fifty-six billion, three hundred twenty-three million, five hundred three thousand, three hundred thirteen".