23665200731 has 2 divisors, whose sum is σ = 23665200732. Its totient is φ = 23665200730.

The previous prime is 23665200721. The next prime is 23665200743. The reversal of 23665200731 is 13700256632.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23665200731 is a prime.

It is a super-2 number, since 2×23665200731² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23665200691 and 23665200700.

It is not a weakly prime, because it can be changed into another prime (23665200721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11832600365 + 11832600366.

It is an arithmetic number, because the mean of its divisors is an integer number (11832600366).

Almost surely, 2^23665200731 is an apocalyptic number.

23665200731 is a deficient number, since it is larger than the sum of its proper divisors (1).

23665200731 is an equidigital number, since it uses as much as digits as its factorization.

23665200731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 23665200731 in words is "twenty-three billion, six hundred sixty-five million, two hundred thousand, seven hundred thirty-one".