18103713020 has 24 divisors (see below), whose sum is σ = 38237560704. Its totient is φ = 7199625536.

The previous prime is 18103712969. The next prime is 18103713029. The reversal of 18103713020 is 2031730181.

It is a super-2 number, since 2×18103713020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18103713029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2612684 + ... + 2619603.

It is an arithmetic number, because the mean of its divisors is an integer number (1593231696).

Almost surely, 2^18103713020 is an apocalyptic number.

18103713020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18103713020 is an abundant number, since it is smaller than the sum of its proper divisors (20133847684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18103713020 is a wasteful number, since it uses less digits than its factorization.

18103713020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5232469 (or 5232467 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 18103713020 in words is "eighteen billion, one hundred three million, seven hundred thirteen thousand, twenty".