23203212100 has 36 divisors (see below), whose sum is σ = 50404910164. Its totient is φ = 9271342080.

The previous prime is 23203212031. The next prime is 23203212143. The reversal of 23203212100 is 121230232.

It can be written as a sum of positive squares in 6 ways, for example, as 6247005444 + 16956206656 = 79038^2 + 130216^2 .

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, 30117 + ... + 217516.

Almost surely, 2^23203212100 is an apocalyptic number.

23203212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203212100 is an abundant number, since it is smaller than the sum of its proper divisors (27201698064).

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

23203212100 is a wasteful number, since it uses less digits than its factorization.

23203212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248584 (or 248577 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23203212100 its reverse (121230232), we get a palindrome (23324442332).

The spelling of 23203212100 in words is "twenty-three billion, two hundred three million, two hundred twelve thousand, one hundred".