23431221142297 has 2 divisors, whose sum is σ = 23431221142298. Its totient is φ = 23431221142296.

The previous prime is 23431221142279. The next prime is 23431221142411. The reversal of 23431221142297 is 79224112213432.

It is a happy number.

Together with previous prime (23431221142279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17256870831321 + 6174350310976 = 4154139^2 + 2484824^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431221142297 - 2³⁹ = 22881465328409 is a prime.

It is not a weakly prime, because it can be changed into another prime (23431221142597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715610571148 + 11715610571149.

It is an arithmetic number, because the mean of its divisors is an integer number (11715610571149).

Almost surely, 2^{23431221142297} is an apocalyptic number.

It is an amenable number.

23431221142297 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431221142297 is an equidigital number, since it uses as much as digits as its factorization.

23431221142297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The spelling of 23431221142297 in words is "twenty-three trillion, four hundred thirty-one billion, two hundred twenty-one million, one hundred forty-two thousand, two hundred ninety-seven".