22131131313 has 4 divisors (see below), whose sum is σ = 29508175088. Its totient is φ = 14754087540.

The previous prime is 22131131279. The next prime is 22131131329. The reversal of 22131131313 is 31313113122.

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 not a de Polignac number, because 22131131313 - 2²² = 22126937009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22131131313.

It is not an unprimeable number, because it can be changed into a prime (22131131513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3688521883 + ... + 3688521888.

It is an arithmetic number, because the mean of its divisors is an integer number (7377043772).

Almost surely, 2^22131131313 is an apocalyptic number.

It is an amenable number.

22131131313 is a deficient number, since it is larger than the sum of its proper divisors (7377043775).

22131131313 is an equidigital number, since it uses as much as digits as its factorization.

22131131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7377043774.

The product of its digits is 324, while the sum is 21.

Adding to 22131131313 its reverse (31313113122), we get a palindrome (53444244435).

The spelling of 22131131313 in words is "twenty-two billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred thirteen".