3131314343331 has 16 divisors (see below), whose sum is σ = 4178282134656. Its totient is φ = 2085945028416.

The previous prime is 3131314343321. The next prime is 3131314343369. The reversal of 3131314343331 is 1333434131313.

It is not a de Polignac number, because 3131314343331 - 2⁵ = 3131314343299 is a prime.

It is a super-2 number, since 2×3131314343331² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131314343292 and 3131314343301.

It is not an unprimeable number, because it can be changed into a prime (3131314343321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48961431 + ... + 49025343.

It is an arithmetic number, because the mean of its divisors is an integer number (261142633416).

Almost surely, 2^{3131314343331} is an apocalyptic number.

3131314343331 is a deficient number, since it is larger than the sum of its proper divisors (1046967791325).

3131314343331 is a wasteful number, since it uses less digits than its factorization.

3131314343331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76162.

The product of its digits is 34992, while the sum is 33.

Adding to 3131314343331 its reverse (1333434131313), we get a palindrome (4464748474644).

The spelling of 3131314343331 in words is "three trillion, one hundred thirty-one billion, three hundred fourteen million, three hundred forty-three thousand, three hundred thirty-one".