131311012 has 24 divisors (see below), whose sum is σ = 263478656. Its totient is φ = 56092608.

The previous prime is 131311001. The next prime is 131311027. The reversal of 131311012 is 210113131.

It is a junction number, because it is equal to n+sod(n) for n = 131310983 and 131311001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273 + ... + 16255.

Almost surely, 2^131311012 is an apocalyptic number.

It is an amenable number.

131311012 is an abundant number, since it is smaller than the sum of its proper divisors (132167644).

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

131311012 is a wasteful number, since it uses less digits than its factorization.

131311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307 (or 15305 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 131311012 is about 11459.1017099945. The cubic root of 131311012 is about 508.2769120812.

Adding to 131311012 its reverse (210113131), we get a palindrome (341424143).

It can be divided in two parts, 13 and 1311012, that added together give a square (1311025 = 1145²).

The spelling of 131311012 in words is "one hundred thirty-one million, three hundred eleven thousand, twelve".