23100220431 has 12 divisors (see below), whose sum is σ = 34443339840. Its totient is φ = 14903367840.

The previous prime is 23100220427. The next prime is 23100220439. The reversal of 23100220431 is 13402200132.

23100220431 is a `hidden beast` number, since 2 + 3 + 10 + 0 + 220 + 431 = 666.

It is not a de Polignac number, because 23100220431 - 2² = 23100220427 is a prime.

It is a super-2 number, since 2×23100220431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23100220439) 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, 41397966 + ... + 41398523.

It is an arithmetic number, because the mean of its divisors is an integer number (2870278320).

Almost surely, 2^23100220431 is an apocalyptic number.

23100220431 is a deficient number, since it is larger than the sum of its proper divisors (11343119409).

23100220431 is a wasteful number, since it uses less digits than its factorization.

23100220431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82796526 (or 82796523 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23100220431 its reverse (13402200132), we get a palindrome (36502420563).

The spelling of 23100220431 in words is "twenty-three billion, one hundred million, two hundred twenty thousand, four hundred thirty-one".