23311698161 has 4 divisors (see below), whose sum is σ = 23315174400. Its totient is φ = 23308221924.

The previous prime is 23311698127. The next prime is 23311698187. The reversal of 23311698161 is 16189611332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23311698161 - 2¹⁰ = 23311697137 is a prime.

It is a super-2 number, since 2×23311698161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23311698191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728041 + ... + 1741478.

It is an arithmetic number, because the mean of its divisors is an integer number (5828793600).

Almost surely, 2^23311698161 is an apocalyptic number.

It is an amenable number.

23311698161 is a deficient number, since it is larger than the sum of its proper divisors (3476239).

23311698161 is an equidigital number, since it uses as much as digits as its factorization.

23311698161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3476238.

The product of its digits is 46656, while the sum is 41.

The spelling of 23311698161 in words is "twenty-three billion, three hundred eleven million, six hundred ninety-eight thousand, one hundred sixty-one".