22313122331 has 4 divisors (see below), whose sum is σ = 22358567064. Its totient is φ = 22267677600.

The previous prime is 22313122327. The next prime is 22313122367. The reversal of 22313122331 is 13322131322.

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 22313122331 - 2² = 22313122327 is a prime.

It is a super-3 number, since 3×22313122331³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22313122297 and 22313122306.

It is not an unprimeable number, because it can be changed into a prime (22313122231) 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, 22721630 + ... + 22722611.

It is an arithmetic number, because the mean of its divisors is an integer number (5589641766).

Almost surely, 2^22313122331 is an apocalyptic number.

22313122331 is a deficient number, since it is larger than the sum of its proper divisors (45444733).

22313122331 is an equidigital number, since it uses as much as digits as its factorization.

22313122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45444732.

The product of its digits is 1296, while the sum is 23.

Adding to 22313122331 its reverse (13322131322), we get a palindrome (35635253653).

The spelling of 22313122331 in words is "twenty-two billion, three hundred thirteen million, one hundred twenty-two thousand, three hundred thirty-one".