131020013332 has 24 divisors (see below), whose sum is σ = 247102308936. Its totient is φ = 60426699648.

The previous prime is 131020013323. The next prime is 131020013357. The reversal of 131020013332 is 233310020131.

It can be written as a sum of positive squares in 4 ways, for example, as 7991644816 + 123028368516 = 89396^2 + 350754^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846163 + ... + 988954.

It is an arithmetic number, because the mean of its divisors is an integer number (10295929539).

Almost surely, 2^131020013332 is an apocalyptic number.

It is an amenable number.

131020013332 is a deficient number, since it is larger than the sum of its proper divisors (116082295604).

131020013332 is a wasteful number, since it uses less digits than its factorization.

131020013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836507 (or 1836505 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131020013332 its reverse (233310020131), we get a palindrome (364330033463).

The spelling of 131020013332 in words is "one hundred thirty-one billion, twenty million, thirteen thousand, three hundred thirty-two".