3131210126 has 16 divisors (see below), whose sum is σ = 5152429440. Its totient is φ = 1415324280.

The previous prime is 3131210113. The next prime is 3131210143. The reversal of 3131210126 is 6210121313.

It is a junction number, because it is equal to n+sod(n) for n = 3131210098 and 3131210107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393626 + ... + 401501.

It is an arithmetic number, because the mean of its divisors is an integer number (322026840).

Almost surely, 2^3131210126 is an apocalyptic number.

3131210126 is a deficient number, since it is larger than the sum of its proper divisors (2021219314).

3131210126 is a wasteful number, since it uses less digits than its factorization.

3131210126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795319.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3131210126 is about 55957.2169250759. The cubic root of 3131210126 is about 1462.9766826209.

Adding to 3131210126 its reverse (6210121313), we get a palindrome (9341331439).

The spelling of 3131210126 in words is "three billion, one hundred thirty-one million, two hundred ten thousand, one hundred twenty-six".