2131313312 has 48 divisors (see below), whose sum is σ = 4277865312. Its totient is φ = 1045075200.

The previous prime is 2131313309. The next prime is 2131313347. The reversal of 2131313312 is 2133131312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342743 + ... + 348905.

It is an arithmetic number, because the mean of its divisors is an integer number (89122194).

Almost surely, 2^2131313312 is an apocalyptic number.

It is an amenable number.

2131313312 is an abundant number, since it is smaller than the sum of its proper divisors (2146552000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131313312 is a wasteful number, since it uses less digits than its factorization.

2131313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381 (or 6373 counting only the distinct ones).

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

The square root of 2131313312 is about 46166.1489838605. The cubic root of 2131313312 is about 1286.9127367552.

Adding to 2131313312 its reverse (2133131312), we get a palindrome (4264444624).

The spelling of 2131313312 in words is "two billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred twelve".