20324312100 has 72 divisors (see below), whose sum is σ = 65338908320. Its totient is φ = 5419815840.

The previous prime is 20324312093. The next prime is 20324312117. The reversal of 20324312100 is 121342302.

20324312100 is a `hidden beast` number, since 20 + 3 + 2 + 431 + 210 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3761062 + ... + 3766461.

Almost surely, 2^20324312100 is an apocalyptic number.

20324312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20324312100 is an abundant number, since it is smaller than the sum of its proper divisors (45014596220).

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

20324312100 is a wasteful number, since it uses less digits than its factorization.

20324312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527546 (or 7527533 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20324312100 its reverse (121342302), we get a palindrome (20445654402).

The spelling of 20324312100 in words is "twenty billion, three hundred twenty-four million, three hundred twelve thousand, one hundred".