131201221131313 has 4 divisors (see below), whose sum is σ = 131287367699568. Its totient is φ = 131115074563060.

The previous prime is 131201221131311. The next prime is 131201221131347. The reversal of 131201221131313 is 313131122102131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131201221131313 - 2¹ = 131201221131311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131201221131311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43073281843 + ... + 43073284888.

It is an arithmetic number, because the mean of its divisors is an integer number (32821841924892).

Almost surely, 2^{131201221131313} is an apocalyptic number.

It is an amenable number.

131201221131313 is a deficient number, since it is larger than the sum of its proper divisors (86146568255).

131201221131313 is an equidigital number, since it uses as much as digits as its factorization.

131201221131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86146568254.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 131201221131313 its reverse (313131122102131), we get a palindrome (444332343233444).

The spelling of 131201221131313 in words is "one hundred thirty-one trillion, two hundred one billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred thirteen".