23505023317 has 2 divisors, whose sum is σ = 23505023318. Its totient is φ = 23505023316.

The previous prime is 23505023309. The next prime is 23505023369. The reversal of 23505023317 is 71332050532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13213732401 + 10291290916 = 114951^2 + 101446^2 .

It is a cyclic number.

It is not a de Polignac number, because 23505023317 - 2³ = 23505023309 is a prime.

It is a super-2 number, since 2×23505023317² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23505023417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11752511658 + 11752511659.

It is an arithmetic number, because the mean of its divisors is an integer number (11752511659).

Almost surely, 2^23505023317 is an apocalyptic number.

It is an amenable number.

23505023317 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505023317 is an equidigital number, since it uses as much as digits as its factorization.

23505023317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 31.

Adding to 23505023317 its reverse (71332050532), we get a palindrome (94837073849).

The spelling of 23505023317 in words is "twenty-three billion, five hundred five million, twenty-three thousand, three hundred seventeen".