23201212100 has 36 divisors (see below), whose sum is σ = 54923599248. Its totient is φ = 8436804000.

The previous prime is 23201212087. The next prime is 23201212109. The reversal of 23201212100 is 121210232.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23201212109) 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, 10544906 + ... + 10547105.

Almost surely, 2^23201212100 is an apocalyptic number.

23201212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23201212100 is an abundant number, since it is smaller than the sum of its proper divisors (31722387148).

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

23201212100 is a wasteful number, since it uses less digits than its factorization.

23201212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21092036 (or 21092029 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23201212100 its reverse (121210232), we get a palindrome (23322422332).

The spelling of 23201212100 in words is "twenty-three billion, two hundred one million, two hundred twelve thousand, one hundred".