20201312100 has 72 divisors (see below), whose sum is σ = 58463376160. Its totient is φ = 5385703680.

The previous prime is 20201312083. The next prime is 20201312179. The reversal of 20201312100 is 121310202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2449584 + ... + 2457816.

Almost surely, 2^20201312100 is an apocalyptic number.

20201312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201312100 is an abundant number, since it is smaller than the sum of its proper divisors (38262064060).

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

20201312100 is a wasteful number, since it uses less digits than its factorization.

20201312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16429 (or 16422 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20201312100 its reverse (121310202), we get a palindrome (20322622302).

The spelling of 20201312100 in words is "twenty billion, two hundred one million, three hundred twelve thousand, one hundred".