23201631365609 has 2 divisors, whose sum is σ = 23201631365610. Its totient is φ = 23201631365608.

The previous prime is 23201631365597. The next prime is 23201631365641. The reversal of 23201631365609 is 90656313610232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14086908082009 + 9114723283600 = 3753253^2 + 3019060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23201631365609 is a prime.

It is a super-2 number, since 2×23201631365609² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23201631367609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600815682804 + 11600815682805.

It is an arithmetic number, because the mean of its divisors is an integer number (11600815682805).

Almost surely, 2^{23201631365609} is an apocalyptic number.

It is an amenable number.

23201631365609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201631365609 is an equidigital number, since it uses as much as digits as its factorization.

23201631365609 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 47.

The spelling of 23201631365609 in words is "twenty-three trillion, two hundred one billion, six hundred thirty-one million, three hundred sixty-five thousand, six hundred nine".