100321332020 has 48 divisors (see below), whose sum is σ = 259292062848. Its totient is φ = 31750047360.

The previous prime is 100321331993. The next prime is 100321332029. The reversal of 100321332020 is 20233123001.

It is a self number, because there is not a number n which added to its sum of digits gives 100321332020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100321332029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27558986 + ... + 27562625.

It is an arithmetic number, because the mean of its divisors is an integer number (5401917976).

Almost surely, 2^100321332020 is an apocalyptic number.

100321332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100321332020 is an abundant number, since it is smaller than the sum of its proper divisors (158970730828).

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

100321332020 is a wasteful number, since it uses less digits than its factorization.

100321332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55121640 (or 55121638 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 100321332020 its reverse (20233123001), we get a palindrome (120554455021).

The spelling of 100321332020 in words is "one hundred billion, three hundred twenty-one million, three hundred thirty-two thousand, twenty".