131210331304 has 32 divisors (see below), whose sum is σ = 265591809000. Its totient is φ = 60410529792.

The previous prime is 131210331293. The next prime is 131210331313. The reversal of 131210331304 is 403133012131.

It can be written as a sum of positive squares in 4 ways, for example, as 110988922500 + 20221408804 = 333150^2 + 142202^2 .

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, 1499809 + ... + 1584880.

Almost surely, 2^131210331304 is an apocalyptic number.

It is an amenable number.

131210331304 is an abundant number, since it is smaller than the sum of its proper divisors (134381477696).

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

131210331304 is a wasteful number, since it uses less digits than its factorization.

131210331304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085117 (or 3085113 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131210331304 its reverse (403133012131), we get a palindrome (534343343435).

The spelling of 131210331304 in words is "one hundred thirty-one billion, two hundred ten million, three hundred thirty-one thousand, three hundred four".