23231002112161 has 2 divisors, whose sum is σ = 23231002112162. Its totient is φ = 23231002112160.

The previous prime is 23231002112147. The next prime is 23231002112191. The reversal of 23231002112161 is 16121120013232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12746720765025 + 10484281347136 = 3570255^2 + 3237944^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231002112161 - 2⁹ = 23231002111649 is a prime.

It is not a weakly prime, because it can be changed into another prime (23231002112191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615501056080 + 11615501056081.

It is an arithmetic number, because the mean of its divisors is an integer number (11615501056081).

Almost surely, 2^{23231002112161} is an apocalyptic number.

It is an amenable number.

23231002112161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231002112161 is an equidigital number, since it uses as much as digits as its factorization.

23231002112161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 23231002112161 its reverse (16121120013232), we get a palindrome (39352122125393).

The spelling of 23231002112161 in words is "twenty-three trillion, two hundred thirty-one billion, two million, one hundred twelve thousand, one hundred sixty-one".