23323121322257 has 2 divisors, whose sum is σ = 23323121322258. Its totient is φ = 23323121322256.

The previous prime is 23323121322233. The next prime is 23323121322299. The reversal of 23323121322257 is 75222312132332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13361832187456 + 9961289134801 = 3655384^2 + 3156151^2 .

It is a cyclic number.

It is not a de Polignac number, because 23323121322257 - 2⁸ = 23323121322001 is a prime.

It is a super-2 number, since 2×23323121322257² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23323121322257.

It is not a weakly prime, because it can be changed into another prime (23323126322257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11661560661128 + 11661560661129.

It is an arithmetic number, because the mean of its divisors is an integer number (11661560661129).

Almost surely, 2^{23323121322257} is an apocalyptic number.

It is an amenable number.

23323121322257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23323121322257 is an equidigital number, since it uses as much as digits as its factorization.

23323121322257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 38.

Adding to 23323121322257 its reverse (75222312132332), we get a palindrome (98545433454589).

The spelling of 23323121322257 in words is "twenty-three trillion, three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred fifty-seven".