3131311402 has 8 divisors (see below), whose sum is σ = 4901183136. Its totient is φ = 1497583692.

The previous prime is 3131311399. The next prime is 3131311427. The reversal of 3131311402 is 2041131313.

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

It is a super-2 number, since 2×3131311402² = 19610222192590411208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3131311402.

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 3 ways as a sum of consecutive naturals, for example, 34035948 + ... + 34036039.

It is an arithmetic number, because the mean of its divisors is an integer number (612647892).

Almost surely, 2^3131311402 is an apocalyptic number.

3131311402 is a deficient number, since it is larger than the sum of its proper divisors (1769871734).

3131311402 is a wasteful number, since it uses less digits than its factorization.

3131311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68072012.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3131311402 is about 55958.1218591189. The cubic root of 3131311402 is about 1462.9924553119.

Adding to 3131311402 its reverse (2041131313), we get a palindrome (5172442715).

The spelling of 3131311402 in words is "three billion, one hundred thirty-one million, three hundred eleven thousand, four hundred two".