23131322333 has 4 divisors (see below), whose sum is σ = 26435796960. Its totient is φ = 19826847708.

The previous prime is 23131322329. The next prime is 23131322351. The reversal of 23131322333 is 33322313132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23131322333 - 2² = 23131322329 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 (23131322393) 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, 1652237303 + ... + 1652237316.

It is an arithmetic number, because the mean of its divisors is an integer number (6608949240).

Almost surely, 2^23131322333 is an apocalyptic number.

It is an amenable number.

23131322333 is a deficient number, since it is larger than the sum of its proper divisors (3304474627).

23131322333 is an equidigital number, since it uses as much as digits as its factorization.

23131322333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304474626.

The product of its digits is 5832, while the sum is 26.

Adding to 23131322333 its reverse (33322313132), we get a palindrome (56453635465).

The spelling of 23131322333 in words is "twenty-three billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred thirty-three".