23132331311 has 4 divisors (see below), whose sum is σ = 23147170800. Its totient is φ = 23117491824.

The previous prime is 23132331269. The next prime is 23132331331. The reversal of 23132331311 is 11313323132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23132331311 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 (23132331331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7417406 + ... + 7420523.

It is an arithmetic number, because the mean of its divisors is an integer number (5786792700).

Almost surely, 2^23132331311 is an apocalyptic number.

23132331311 is a deficient number, since it is larger than the sum of its proper divisors (14839489).

23132331311 is a wasteful number, since it uses less digits than its factorization.

23132331311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14839488.

The product of its digits is 972, while the sum is 23.

Adding to 23132331311 its reverse (11313323132), we get a palindrome (34445654443).

The spelling of 23132331311 in words is "twenty-three billion, one hundred thirty-two million, three hundred thirty-one thousand, three hundred eleven".