100320322020 has 48 divisors (see below), whose sum is σ = 289958097408. Its totient is φ = 25889114880.

The previous prime is 100320321929. The next prime is 100320322033. The reversal of 100320322020 is 20223023001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26965969 + ... + 26969688.

It is an arithmetic number, because the mean of its divisors is an integer number (6040793696).

Almost surely, 2^100320322020 is an apocalyptic number.

100320322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100320322020 is an abundant number, since it is smaller than the sum of its proper divisors (189637775388).

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

100320322020 is a wasteful number, since it uses less digits than its factorization.

100320322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53935700 (or 53935698 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 100320322020 its reverse (20223023001), we get a palindrome (120543345021).

The spelling of 100320322020 in words is "one hundred billion, three hundred twenty million, three hundred twenty-two thousand, twenty".