23263220317 has 2 divisors, whose sum is σ = 23263220318. Its totient is φ = 23263220316.

The previous prime is 23263220293. The next prime is 23263220327. The reversal of 23263220317 is 71302236232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22498200036 + 765020281 = 149994^2 + 27659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23263220317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23263220327) 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, 11631610158 + 11631610159.

It is an arithmetic number, because the mean of its divisors is an integer number (11631610159).

Almost surely, 2^23263220317 is an apocalyptic number.

It is an amenable number.

23263220317 is a deficient number, since it is larger than the sum of its proper divisors (1).

23263220317 is an equidigital number, since it uses as much as digits as its factorization.

23263220317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 23263220317 its reverse (71302236232), we get a palindrome (94565456549).

The spelling of 23263220317 in words is "twenty-three billion, two hundred sixty-three million, two hundred twenty thousand, three hundred seventeen".