23132131111 has 2 divisors, whose sum is σ = 23132131112. Its totient is φ = 23132131110.

The previous prime is 23132131109. The next prime is 23132131123. The reversal of 23132131111 is 11113123132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23132131111 - 2¹ = 23132131109 is a prime.

Together with 23132131109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23132131171) 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 as a sum of consecutive naturals, namely, 11566065555 + 11566065556.

It is an arithmetic number, because the mean of its divisors is an integer number (11566065556).

Almost surely, 2^23132131111 is an apocalyptic number.

23132131111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23132131111 is an equidigital number, since it uses as much as digits as its factorization.

23132131111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

Adding to 23132131111 its reverse (11113123132), we get a palindrome (34245254243).

The spelling of 23132131111 in words is "twenty-three billion, one hundred thirty-two million, one hundred thirty-one thousand, one hundred eleven".