23031222317 has 2 divisors, whose sum is σ = 23031222318. Its totient is φ = 23031222316.

The previous prime is 23031222287. The next prime is 23031222377. The reversal of 23031222317 is 71322213032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20013477961 + 3017744356 = 141469^2 + 54934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031222317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031222377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515611158 + 11515611159.

It is an arithmetic number, because the mean of its divisors is an integer number (11515611159).

Almost surely, 2^23031222317 is an apocalyptic number.

It is an amenable number.

23031222317 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031222317 is an equidigital number, since it uses as much as digits as its factorization.

23031222317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 23031222317 its reverse (71322213032), we get a palindrome (94353435349).

The spelling of 23031222317 in words is "twenty-three billion, thirty-one million, two hundred twenty-two thousand, three hundred seventeen".