20322032100 has 36 divisors (see below), whose sum is σ = 58798413744. Its totient is φ = 5419208480.

The previous prime is 20322032077. The next prime is 20322032123. The reversal of 20322032100 is 123022302.

It is an interprime number because it is at equal distance from previous prime (20322032077) and next prime (20322032123).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20322032100.

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, 33869754 + ... + 33870353.

Almost surely, 2^20322032100 is an apocalyptic number.

20322032100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20322032100 is an abundant number, since it is smaller than the sum of its proper divisors (38476381644).

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

20322032100 is a wasteful number, since it uses less digits than its factorization.

20322032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67740124 (or 67740117 counting only the distinct ones).

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

Adding to 20322032100 its reverse (123022302), we get a palindrome (20445054402).

The spelling of 20322032100 in words is "twenty billion, three hundred twenty-two million, thirty-two thousand, one hundred".