23133322131 has 4 divisors (see below), whose sum is σ = 30844429512. Its totient is φ = 15422214752.

The previous prime is 23133322123. The next prime is 23133322141. The reversal of 23133322131 is 13122333132.

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 23133322131 - 2³ = 23133322123 is a prime.

It is a super-2 number, since 2×23133322131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23133322141) 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, 3855553686 + ... + 3855553691.

It is an arithmetic number, because the mean of its divisors is an integer number (7711107378).

Almost surely, 2^23133322131 is an apocalyptic number.

23133322131 is a deficient number, since it is larger than the sum of its proper divisors (7711107381).

23133322131 is an equidigital number, since it uses as much as digits as its factorization.

23133322131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7711107380.

The product of its digits is 1944, while the sum is 24.

Adding to 23133322131 its reverse (13122333132), we get a palindrome (36255655263).

The spelling of 23133322131 in words is "twenty-three billion, one hundred thirty-three million, three hundred twenty-two thousand, one hundred thirty-one".