20256153013 has 4 divisors (see below), whose sum is σ = 20687135040. Its totient is φ = 19825170988.

The previous prime is 20256152989. The next prime is 20256153037. The reversal of 20256153013 is 31035165202.

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 an interprime number because it is at equal distance from previous prime (20256152989) and next prime (20256153037).

It is a cyclic number.

It is not a de Polignac number, because 20256153013 - 2²⁵ = 20222598581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20256153053) 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, 215490943 + ... + 215491036.

It is an arithmetic number, because the mean of its divisors is an integer number (5171783760).

Almost surely, 2^20256153013 is an apocalyptic number.

It is an amenable number.

20256153013 is a deficient number, since it is larger than the sum of its proper divisors (430982027).

20256153013 is an equidigital number, since it uses as much as digits as its factorization.

20256153013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430982026.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 20256153013 in words is "twenty billion, two hundred fifty-six million, one hundred fifty-three thousand, thirteen".