100032320020 has 12 divisors (see below), whose sum is σ = 210067872084. Its totient is φ = 40012928000.

The previous prime is 100032319979. The next prime is 100032320027. The reversal of 100032320020 is 20023230001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11920709124 + 88111610896 = 109182^2 + 296836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100032320027) 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, 2500807981 + ... + 2500808020.

It is an arithmetic number, because the mean of its divisors is an integer number (17505656007).

Almost surely, 2^100032320020 is an apocalyptic number.

100032320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100032320020 is an abundant number, since it is smaller than the sum of its proper divisors (110035552064).

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

100032320020 is a wasteful number, since it uses less digits than its factorization.

100032320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001616010 (or 5001616008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 100032320020 its reverse (20023230001), we get a palindrome (120055550021).

The spelling of 100032320020 in words is "one hundred billion, thirty-two million, three hundred twenty thousand, twenty".