131031021420244 has 48 divisors (see below), whose sum is σ = 251675510800896. Its totient is φ = 59196447596000.

The previous prime is 131031021420217. The next prime is 131031021420283. The reversal of 131031021420244 is 442024120130131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66654819 + ... + 68592469.

It is an arithmetic number, because the mean of its divisors is an integer number (5243239808352).

Almost surely, 2^{131031021420244} is an apocalyptic number.

It is an amenable number.

131031021420244 is a deficient number, since it is larger than the sum of its proper divisors (120644489380652).

131031021420244 is a wasteful number, since it uses less digits than its factorization.

131031021420244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947036 (or 1947034 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131031021420244 its reverse (442024120130131), we get a palindrome (573055141550375).

The spelling of 131031021420244 in words is "one hundred thirty-one trillion, thirty-one billion, twenty-one million, four hundred twenty thousand, two hundred forty-four".