23231002112081 has 2 divisors, whose sum is σ = 23231002112082. Its totient is φ = 23231002112080.

The previous prime is 23231002112077. The next prime is 23231002112147. The reversal of 23231002112081 is 18021120013232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21420790627600 + 1810211484481 = 4628260^2 + 1345441^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231002112081 - 2² = 23231002112077 is a prime.

It is a super-2 number, since 2×23231002112081² (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 23231002112081.

It is not a weakly prime, because it can be changed into another prime (23231002912081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615501056040 + 11615501056041.

It is an arithmetic number, because the mean of its divisors is an integer number (11615501056041).

Almost surely, 2^{23231002112081} is an apocalyptic number.

It is an amenable number.

23231002112081 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231002112081 is an equidigital number, since it uses as much as digits as its factorization.

23231002112081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 23231002112081 in words is "twenty-three trillion, two hundred thirty-one billion, two million, one hundred twelve thousand, eighty-one".