23111223131013 has 16 divisors (see below), whose sum is σ = 32630404144320. Its totient is φ = 14499917381376.

The previous prime is 23111223130997. The next prime is 23111223131027. The reversal of 23111223131013 is 31013132211132.

It is not a de Polignac number, because 23111223131013 - 2⁴ = 23111223130997 is a prime.

It is a super-2 number, since 2×23111223131013² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111223131083) 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, 18808483 + ... + 19999536.

It is an arithmetic number, because the mean of its divisors is an integer number (2039400259020).

Almost surely, 2^{23111223131013} is an apocalyptic number.

It is an amenable number.

23111223131013 is a deficient number, since it is larger than the sum of its proper divisors (9519181013307).

23111223131013 is a wasteful number, since it uses less digits than its factorization.

23111223131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38819716.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 23111223131013 its reverse (31013132211132), we get a palindrome (54124355342145).

The spelling of 23111223131013 in words is "twenty-three trillion, one hundred eleven billion, two hundred twenty-three million, one hundred thirty-one thousand, thirteen".