20323012100 has 36 divisors (see below), whose sum is σ = 46695112884. Its totient is φ = 7651015680.

The previous prime is 20323012079. The next prime is 20323012103. The reversal of 20323012100 is 121032302.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 85673536 + 20237338564 = 9256^2 + 142258^2 .

It is not an unprimeable number, because it can be changed into a prime (20323012103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5975657 + ... + 5979056.

It is an arithmetic number, because the mean of its divisors is an integer number (1297086469).

Almost surely, 2^20323012100 is an apocalyptic number.

20323012100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323012100 is an abundant number, since it is smaller than the sum of its proper divisors (26372100784).

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

20323012100 is a wasteful number, since it uses less digits than its factorization.

20323012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11954744 (or 11954737 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20323012100 its reverse (121032302), we get a palindrome (20444044402).

The spelling of 20323012100 in words is "twenty billion, three hundred twenty-three million, twelve thousand, one hundred".