20032311200 has 72 divisors (see below), whose sum is σ = 53349710400. Its totient is φ = 7284473600.

The previous prime is 20032311149. The next prime is 20032311251. The reversal of 20032311200 is 211323002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20032311149) and next prime (20032311251).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1129400 + ... + 1146999.

It is an arithmetic number, because the mean of its divisors is an integer number (740968200).

Almost surely, 2^20032311200 is an apocalyptic number.

20032311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032311200 is an abundant number, since it is smaller than the sum of its proper divisors (33317399200).

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

20032311200 is a wasteful number, since it uses less digits than its factorization.

20032311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276430 (or 2276417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20032311200 its reverse (211323002), we get a palindrome (20243634202).

The spelling of 20032311200 in words is "twenty billion, thirty-two million, three hundred eleven thousand, two hundred".