23155121411 has 4 divisors (see below), whose sum is σ = 23236941912. Its totient is φ = 23073300912.

The previous prime is 23155121401. The next prime is 23155121413. The reversal of 23155121411 is 11412155132.

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 23155121411 - 2²⁶ = 23088012547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23155121413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40909826 + ... + 40910391.

It is an arithmetic number, because the mean of its divisors is an integer number (5809235478).

Almost surely, 2^23155121411 is an apocalyptic number.

23155121411 is a deficient number, since it is larger than the sum of its proper divisors (81820501).

23155121411 is an equidigital number, since it uses as much as digits as its factorization.

23155121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81820500.

The product of its digits is 1200, while the sum is 26.

Adding to 23155121411 its reverse (11412155132), we get a palindrome (34567276543).

The spelling of 23155121411 in words is "twenty-three billion, one hundred fifty-five million, one hundred twenty-one thousand, four hundred eleven".