23100212421 has 128 divisors (see below), whose sum is σ = 42016665600. Its totient is φ = 12350257920.

The previous prime is 23100212419. The next prime is 23100212477. The reversal of 23100212421 is 12421200132.

23100212421 = 7639² + 7640² + ... + 8015².

It is a happy number.

23100212421 is a `hidden beast` number, since 2 + 31 + 0 + 0 + 212 + 421 = 666.

It is not a de Polignac number, because 23100212421 - 2¹ = 23100212419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23100212394 and 23100212403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100212321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11531806 + ... + 11533808.

It is an arithmetic number, because the mean of its divisors is an integer number (328255200).

Almost surely, 2^23100212421 is an apocalyptic number.

It is an amenable number.

23100212421 is a deficient number, since it is larger than the sum of its proper divisors (18916453179).

23100212421 is a wasteful number, since it uses less digits than its factorization.

23100212421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2162 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23100212421 its reverse (12421200132), we get a palindrome (35521412553).

The spelling of 23100212421 in words is "twenty-three billion, one hundred million, two hundred twelve thousand, four hundred twenty-one".