131321104644 has 48 divisors (see below), whose sum is σ = 307002816512. Its totient is φ = 43689929472.

The previous prime is 131321104631. The next prime is 131321104667. The reversal of 131321104644 is 446401123131.

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, 23860797 + ... + 23866299.

Almost surely, 2^131321104644 is an apocalyptic number.

It is an amenable number.

131321104644 is an abundant number, since it is smaller than the sum of its proper divisors (175681711868).

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

131321104644 is a wasteful number, since it uses less digits than its factorization.

131321104644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8954 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131321104644 its reverse (446401123131), we get a palindrome (577722227775).

The spelling of 131321104644 in words is "one hundred thirty-one billion, three hundred twenty-one million, one hundred four thousand, six hundred forty-four".