20312300100 has 72 divisors (see below), whose sum is σ = 58820797728. Its totient is φ = 5411955200.

The previous prime is 20312300087. The next prime is 20312300101. The reversal of 20312300100 is 100321302.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20312300101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327580 + ... + 384620.

It is an arithmetic number, because the mean of its divisors is an integer number (816955524).

Almost surely, 2^20312300100 is an apocalyptic number.

20312300100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312300100 is an abundant number, since it is smaller than the sum of its proper divisors (38508497628).

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

20312300100 is a wasteful number, since it uses less digits than its factorization.

20312300100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58245 (or 58238 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20312300100 its reverse (100321302), we get a palindrome (20412621402).

The spelling of 20312300100 in words is "twenty billion, three hundred twelve million, three hundred thousand, one hundred".