23165441311 has 4 divisors (see below), whose sum is σ = 23169386224. Its totient is φ = 23161496400.

The previous prime is 23165441293. The next prime is 23165441317. The reversal of 23165441311 is 11314456132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23165441311 - 2⁹ = 23165440799 is a prime.

It is a super-2 number, since 2×23165441311² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23165441317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963635 + ... + 1975396.

It is an arithmetic number, because the mean of its divisors is an integer number (5792346556).

Almost surely, 2^23165441311 is an apocalyptic number.

23165441311 is a deficient number, since it is larger than the sum of its proper divisors (3944913).

23165441311 is an equidigital number, since it uses as much as digits as its factorization.

23165441311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3944912.

The product of its digits is 8640, while the sum is 31.

Adding to 23165441311 its reverse (11314456132), we get a palindrome (34479897443).

The spelling of 23165441311 in words is "twenty-three billion, one hundred sixty-five million, four hundred forty-one thousand, three hundred eleven".