131322332220985 has 16 divisors (see below), whose sum is σ = 159236805142800. Its totient is φ = 103958207041536.

The previous prime is 131322332220971. The next prime is 131322332221019. The reversal of 131322332220985 is 589022233223131.

It can be written as a sum of positive squares in 8 ways, for example, as 35086703100409 + 96235629120576 = 5923403^2 + 9809976^2 .

It is a cyclic number.

It is not a de Polignac number, because 131322332220985 - 2⁵ = 131322332220953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18555300 + ... + 24636229.

It is an arithmetic number, because the mean of its divisors is an integer number (9952300321425).

Almost surely, 2^{131322332220985} is an apocalyptic number.

It is an amenable number.

131322332220985 is a deficient number, since it is larger than the sum of its proper divisors (27914472921815).

131322332220985 is an equidigital number, since it uses as much as digits as its factorization.

131322332220985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43197900.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 131322332220985 in words is "one hundred thirty-one trillion, three hundred twenty-two billion, three hundred thirty-two million, two hundred twenty thousand, nine hundred eighty-five".