131031312010 has 16 divisors (see below), whose sum is σ = 235862713800. Its totient is φ = 52411113216.

The previous prime is 131031312001. The next prime is 131031312011. The reversal of 131031312010 is 10213130131.

It can be written as a sum of positive squares in 4 ways, for example, as 127286973529 + 3744338481 = 356773^2 + 61191^2 .

It is not an unprimeable number, because it can be changed into a prime (131031312011) 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, 266326 + ... + 577054.

Almost surely, 2^131031312010 is an apocalyptic number.

131031312010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131031312010 is a deficient number, since it is larger than the sum of its proper divisors (104831401790).

131031312010 is a wasteful number, since it uses less digits than its factorization.

131031312010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352905.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 131031312010 its reverse (10213130131), we get a palindrome (141244442141).

The spelling of 131031312010 in words is "one hundred thirty-one billion, thirty-one million, three hundred twelve thousand, ten".