23131131311 has 8 divisors (see below), whose sum is σ = 24493682304. Its totient is φ = 21768791040.

The previous prime is 23131131269. The next prime is 23131131313. The reversal of 23131131311 is 11313113132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23131131311 - 2¹⁰ = 23131130287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131131313) 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 7 ways as a sum of consecutive naturals, for example, 211106 + ... + 301376.

It is an arithmetic number, because the mean of its divisors is an integer number (3061710288).

Almost surely, 2^23131131311 is an apocalyptic number.

23131131311 is a deficient number, since it is larger than the sum of its proper divisors (1362550993).

23131131311 is a wasteful number, since it uses less digits than its factorization.

23131131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105361.

The product of its digits is 162, while the sum is 20.

Adding to 23131131311 its reverse (11313113132), we get a palindrome (34444244443).

It can be divided in two parts, 2313113131 and 1, that added together give a palindrome (2313113132).

The spelling of 23131131311 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred eleven".