131132212212321 has 12 divisors (see below), whose sum is σ = 189413445761748. Its totient is φ = 87421359264864.

The previous prime is 131132212212319. The next prime is 131132212212361. The reversal of 131132212212321 is 123212212231131.

131132212212321 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 322 + 1 + 2 + 2 + 12 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 82458022809600 + 48674189402721 = 9080640^2 + 6976689^2 .

It is not a de Polignac number, because 131132212212321 - 2¹ = 131132212212319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131132212212361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2133750 + ... + 16334543.

It is an arithmetic number, because the mean of its divisors is an integer number (15784453813479).

Almost surely, 2^{131132212212321} is an apocalyptic number.

It is an amenable number.

131132212212321 is a deficient number, since it is larger than the sum of its proper divisors (58281233549427).

131132212212321 is a wasteful number, since it uses less digits than its factorization.

131132212212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19257232 (or 19257229 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 131132212212321 its reverse (123212212231131), we get a palindrome (254344424443452).

The spelling of 131132212212321 in words is "one hundred thirty-one trillion, one hundred thirty-two billion, two hundred twelve million, two hundred twelve thousand, three hundred twenty-one".