20320613703 has 12 divisors (see below), whose sum is σ = 31609843720. Its totient is φ = 12504992976.

The previous prime is 20320613681. The next prime is 20320613713. The reversal of 20320613703 is 30731602302.

20320613703 is a `hidden beast` number, since 20 + 3 + 20 + 613 + 7 + 0 + 3 = 666.

It is not a de Polignac number, because 20320613703 - 2⁵ = 20320613671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320613713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86840113 + ... + 86840346.

Almost surely, 2^20320613703 is an apocalyptic number.

20320613703 is a deficient number, since it is larger than the sum of its proper divisors (11289230017).

20320613703 is a wasteful number, since it uses less digits than its factorization.

20320613703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173680478 (or 173680475 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The spelling of 20320613703 in words is "twenty billion, three hundred twenty million, six hundred thirteen thousand, seven hundred three".