23121451052100 has 108 divisors (see below), whose sum is σ = 72473862167616. Its totient is φ = 6165638746560.

The previous prime is 23121451052087. The next prime is 23121451052101. The reversal of 23121451052100 is 125015412132.

It is a happy number.

23121451052100 is a `hidden beast` number, since 2 + 3 + 121 + 4 + 5 + 10 + 521 + 0 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (23121451052101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 102147649 + ... + 102373751.

Almost surely, 2^{23121451052100} is an apocalyptic number.

23121451052100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121451052100 is an abundant number, since it is smaller than the sum of its proper divisors (49352411115516).

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

23121451052100 is a wasteful number, since it uses less digits than its factorization.

23121451052100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339746 (or 339736 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 23121451052100 its reverse (125015412132), we get a palindrome (23246466464232).

The spelling of 23121451052100 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred fifty-one million, fifty-two thousand, one hundred".