2131313313 has 8 divisors (see below), whose sum is σ = 2848167648. Its totient is φ = 1417667264.

The previous prime is 2131313309. The next prime is 2131313347. The reversal of 2131313313 is 3133131312.

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 2131313313 - 2² = 2131313309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131313313.

It is not an unprimeable number, because it can be changed into a prime (2131313363) 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, 800520 + ... + 803177.

It is an arithmetic number, because the mean of its divisors is an integer number (356020956).

Almost surely, 2^2131313313 is an apocalyptic number.

It is an amenable number.

2131313313 is a deficient number, since it is larger than the sum of its proper divisors (716854335).

2131313313 is a wasteful number, since it uses less digits than its factorization.

2131313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604143.

The product of its digits is 486, while the sum is 21.

The square root of 2131313313 is about 46166.1489946909. The cubic root of 2131313313 is about 1286.9127369565.

Adding to 2131313313 its reverse (3133131312), we get a palindrome (5264444625).

The spelling of 2131313313 in words is "two billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred thirteen".