131302221312 has 40 divisors (see below), whose sum is σ = 349797328056. Its totient is φ = 43767406592.

The previous prime is 131302221307. The next prime is 131302221329. The reversal of 131302221312 is 213122203131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42740073 + ... + 42743144.

Almost surely, 2^131302221312 is an apocalyptic number.

131302221312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131302221312 is an abundant number, since it is smaller than the sum of its proper divisors (218495106744).

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

131302221312 is an frugal number, since it uses more digits than its factorization.

131302221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85483238 (or 85483222 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131302221312 its reverse (213122203131), we get a palindrome (344424424443).

The spelling of 131302221312 in words is "one hundred thirty-one billion, three hundred two million, two hundred twenty-one thousand, three hundred twelve".