131313131321201 has 4 divisors (see below), whose sum is σ = 131317582492404. Its totient is φ = 131308680150000.

The previous prime is 131313131321173. The next prime is 131313131321213. The reversal of 131313131321201 is 102123131313131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35872912360000 + 95440218961201 = 5989400^2 + 9769351^2 .

It is a cyclic number.

It is not a de Polignac number, because 131313131321201 - 2³⁰ = 131312057579377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131313131321501) 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, 2225541350 + ... + 2225600351.

It is an arithmetic number, because the mean of its divisors is an integer number (32829395623101).

Almost surely, 2^{131313131321201} is an apocalyptic number.

It is an amenable number.

131313131321201 is a deficient number, since it is larger than the sum of its proper divisors (4451171203).

131313131321201 is an equidigital number, since it uses as much as digits as its factorization.

131313131321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451171202.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 131313131321201 its reverse (102123131313131), we get a palindrome (233436262634332).

The spelling of 131313131321201 in words is "one hundred thirty-one trillion, three hundred thirteen billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred one".