23161323065239 has 2 divisors, whose sum is σ = 23161323065240. Its totient is φ = 23161323065238.

The previous prime is 23161323065233. The next prime is 23161323065273. The reversal of 23161323065239 is 93256032316132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23161323065239 is a prime.

It is a super-2 number, since 2×23161323065239² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23161323065233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11580661532619 + 11580661532620.

It is an arithmetic number, because the mean of its divisors is an integer number (11580661532620).

Almost surely, 2^{23161323065239} is an apocalyptic number.

23161323065239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23161323065239 is an equidigital number, since it uses as much as digits as its factorization.

23161323065239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 46.

The spelling of 23161323065239 in words is "twenty-three trillion, one hundred sixty-one billion, three hundred twenty-three million, sixty-five thousand, two hundred thirty-nine".