131012244 has 36 divisors (see below), whose sum is σ = 361277280. Its totient is φ = 39700560.

The previous prime is 131012213. The next prime is 131012249. The reversal of 131012244 is 442210131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165024 + ... + 165815.

It is an arithmetic number, because the mean of its divisors is an integer number (10035480).

Almost surely, 2^131012244 is an apocalyptic number.

It is an amenable number.

131012244 is an abundant number, since it is smaller than the sum of its proper divisors (230265036).

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

131012244 is a wasteful number, since it uses less digits than its factorization.

131012244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330860 (or 330855 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131012244 is about 11446.0580113854. The cubic root of 131012244 is about 507.8911302854.

Adding to 131012244 its reverse (442210131), we get a palindrome (573222375).

The spelling of 131012244 in words is "one hundred thirty-one million, twelve thousand, two hundred forty-four".