23111204442131 has 16 divisors (see below), whose sum is σ = 26353234510848. Its totient is φ = 20078370048000.

The previous prime is 23111204442127. The next prime is 23111204442149. The reversal of 23111204442131 is 13124440211132.

It is a cyclic number.

It is not a de Polignac number, because 23111204442131 - 2² = 23111204442127 is a prime.

It is a super-2 number, since 2×23111204442131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23111204442094 and 23111204442103.

It is not an unprimeable number, because it can be changed into a prime (23111204442331) 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 15 ways as a sum of consecutive naturals, for example, 41561531 + ... + 42113931.

It is an arithmetic number, because the mean of its divisors is an integer number (1647077156928).

Almost surely, 2^{23111204442131} is an apocalyptic number.

23111204442131 is a deficient number, since it is larger than the sum of its proper divisors (3242030068717).

23111204442131 is a wasteful number, since it uses less digits than its factorization.

23111204442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741742.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 23111204442131 its reverse (13124440211132), we get a palindrome (36235644653263).

The spelling of 23111204442131 in words is "twenty-three trillion, one hundred eleven billion, two hundred four million, four hundred forty-two thousand, one hundred thirty-one".