2311322313 has 4 divisors (see below), whose sum is σ = 3081763088. Its totient is φ = 1540881540.

The previous prime is 2311322303. The next prime is 2311322323. The reversal of 2311322313 is 3132231132.

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 an interprime number because it is at equal distance from previous prime (2311322303) and next prime (2311322323).

It is not a de Polignac number, because 2311322313 - 2⁴ = 2311322297 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 2311322313.

It is not an unprimeable number, because it can be changed into a prime (2311322303) 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, 385220383 + ... + 385220388.

It is an arithmetic number, because the mean of its divisors is an integer number (770440772).

Almost surely, 2^2311322313 is an apocalyptic number.

It is an amenable number.

2311322313 is a deficient number, since it is larger than the sum of its proper divisors (770440775).

2311322313 is an equidigital number, since it uses as much as digits as its factorization.

2311322313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770440774.

The product of its digits is 648, while the sum is 21.

The square root of 2311322313 is about 48076.2135884264. The cubic root of 2311322313 is about 1322.1685949833.

Adding to 2311322313 its reverse (3132231132), we get a palindrome (5443553445).

The spelling of 2311322313 in words is "two billion, three hundred eleven million, three hundred twenty-two thousand, three hundred thirteen".