23631229451 has 2 divisors, whose sum is σ = 23631229452. Its totient is φ = 23631229450.

The previous prime is 23631229421. The next prime is 23631229463. The reversal of 23631229451 is 15492213632.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23631229451 - 2⁶ = 23631229387 is a prime.

It is a super-2 number, since 2×23631229451² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23631229421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11815614725 + 11815614726.

It is an arithmetic number, because the mean of its divisors is an integer number (11815614726).

Almost surely, 2^23631229451 is an apocalyptic number.

23631229451 is a deficient number, since it is larger than the sum of its proper divisors (1).

23631229451 is an equidigital number, since it uses as much as digits as its factorization.

23631229451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The spelling of 23631229451 in words is "twenty-three billion, six hundred thirty-one million, two hundred twenty-nine thousand, four hundred fifty-one".