2311231313 has 8 divisors (see below), whose sum is σ = 2333654400. Its totient is φ = 2288830608.

The previous prime is 2311231309. The next prime is 2311231331. The reversal of 2311231313 is 3131321132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2311231313 - 2² = 2311231309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311231303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263720 + ... + 272342.

It is an arithmetic number, because the mean of its divisors is an integer number (291706800).

Almost surely, 2^2311231313 is an apocalyptic number.

It is an amenable number.

2311231313 is a deficient number, since it is larger than the sum of its proper divisors (22423087).

2311231313 is a wasteful number, since it uses less digits than its factorization.

2311231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191.

The product of its digits is 324, while the sum is 20.

The square root of 2311231313 is about 48075.2671651443. The cubic root of 2311231313 is about 1322.1512428785.

Adding to 2311231313 its reverse (3131321132), we get a palindrome (5442552445).

The spelling of 2311231313 in words is "two billion, three hundred eleven million, two hundred thirty-one thousand, three hundred thirteen".