23200131989 has 2 divisors, whose sum is σ = 23200131990. Its totient is φ = 23200131988.

The previous prime is 23200131917. The next prime is 23200132099. The reversal of 23200131989 is 98913100232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23038079089 + 162052900 = 151783^2 + 12730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23200131989 is a prime.

It is a super-2 number, since 2×23200131989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23200131389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600065994 + 11600065995.

It is an arithmetic number, because the mean of its divisors is an integer number (11600065995).

Almost surely, 2^23200131989 is an apocalyptic number.

It is an amenable number.

23200131989 is a deficient number, since it is larger than the sum of its proper divisors (1).

23200131989 is an equidigital number, since it uses as much as digits as its factorization.

23200131989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 23200131989 in words is "twenty-three billion, two hundred million, one hundred thirty-one thousand, nine hundred eighty-nine".