23311121297 has 2 divisors, whose sum is σ = 23311121298. Its totient is φ = 23311121296.

The previous prime is 23311121291. The next prime is 23311121333. The reversal of 23311121297 is 79212111332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22849043281 + 462078016 = 151159^2 + 21496^2 .

It is a cyclic number.

It is not a de Polignac number, because 23311121297 - 2⁶ = 23311121233 is a prime.

It is a super-2 number, since 2×23311121297² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23311121291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655560648 + 11655560649.

It is an arithmetic number, because the mean of its divisors is an integer number (11655560649).

Almost surely, 2^23311121297 is an apocalyptic number.

It is an amenable number.

23311121297 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311121297 is an equidigital number, since it uses as much as digits as its factorization.

23311121297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The spelling of 23311121297 in words is "twenty-three billion, three hundred eleven million, one hundred twenty-one thousand, two hundred ninety-seven".