131321461244 has 24 divisors (see below), whose sum is σ = 231540346800. Its totient is φ = 65167285376.

The previous prime is 131321461237. The next prime is 131321461267. The reversal of 131321461244 is 442164123131.

It is a self number, because there is not a number n which added to its sum of digits gives 131321461244.

It is a congruent number.

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, 2770754 + ... + 2817750.

It is an arithmetic number, because the mean of its divisors is an integer number (9647514450).

Almost surely, 2^131321461244 is an apocalyptic number.

It is an amenable number.

131321461244 is a deficient number, since it is larger than the sum of its proper divisors (100218885556).

131321461244 is a wasteful number, since it uses less digits than its factorization.

131321461244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52237 (or 52235 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

Adding to 131321461244 its reverse (442164123131), we get a palindrome (573485584375).

The spelling of 131321461244 in words is "one hundred thirty-one billion, three hundred twenty-one million, four hundred sixty-one thousand, two hundred forty-four".