20367257313 has 16 divisors (see below), whose sum is σ = 29534855616. Its totient is φ = 12409598400.

The previous prime is 20367257299. The next prime is 20367257327. The reversal of 20367257313 is 31375276302.

It is an interprime number because it is at equal distance from previous prime (20367257299) and next prime (20367257327).

It is not a de Polignac number, because 20367257313 - 2⁶ = 20367257249 is a prime.

It is a super-3 number, since 3×20367257313³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (20367257363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2581395 + ... + 2589272.

It is an arithmetic number, because the mean of its divisors is an integer number (1845928476).

Almost surely, 2^20367257313 is an apocalyptic number.

It is an amenable number.

20367257313 is a deficient number, since it is larger than the sum of its proper divisors (9167598303).

20367257313 is a wasteful number, since it uses less digits than its factorization.

20367257313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170784.

The product of its (nonzero) digits is 158760, while the sum is 39.

The spelling of 20367257313 in words is "twenty billion, three hundred sixty-seven million, two hundred fifty-seven thousand, three hundred thirteen".