23132231111 has 4 divisors (see below), whose sum is σ = 25235161224. Its totient is φ = 21029301000.

The previous prime is 23132231069. The next prime is 23132231113. The reversal of 23132231111 is 11113223132.

It is a happy number.

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 23132231111 - 2⁶ = 23132231047 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 (23132231113) 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 3 ways as a sum of consecutive naturals, for example, 1051465040 + ... + 1051465061.

It is an arithmetic number, because the mean of its divisors is an integer number (6308790306).

Almost surely, 2^23132231111 is an apocalyptic number.

23132231111 is a deficient number, since it is larger than the sum of its proper divisors (2102930113).

23132231111 is a wasteful number, since it uses less digits than its factorization.

23132231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102930112.

The product of its digits is 216, while the sum is 20.

Adding to 23132231111 its reverse (11113223132), we get a palindrome (34245454243).

The spelling of 23132231111 in words is "twenty-three billion, one hundred thirty-two million, two hundred thirty-one thousand, one hundred eleven".