23368812653 has 2 divisors, whose sum is σ = 23368812654. Its totient is φ = 23368812652.

The previous prime is 23368812641. The next prime is 23368812661. The reversal of 23368812653 is 35621886332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17042519209 + 6326293444 = 130547^2 + 79538^2 .

It is a cyclic number.

It is not a de Polignac number, because 23368812653 - 2¹⁰ = 23368811629 is a prime.

It is a super-2 number, since 2×23368812653² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23368812598 and 23368812607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23368812853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11684406326 + 11684406327.

It is an arithmetic number, because the mean of its divisors is an integer number (11684406327).

Almost surely, 2^23368812653 is an apocalyptic number.

It is an amenable number.

23368812653 is a deficient number, since it is larger than the sum of its proper divisors (1).

23368812653 is an equidigital number, since it uses as much as digits as its factorization.

23368812653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 23368812653 in words is "twenty-three billion, three hundred sixty-eight million, eight hundred twelve thousand, six hundred fifty-three".