131321301302131 has 4 divisors (see below), whose sum is σ = 133799061704112. Its totient is φ = 128843540900152.

The previous prime is 131321301302123. The next prime is 131321301302171. The reversal of 131321301302131 is 131203103123131.

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

It is a cyclic number.

It is not a de Polignac number, because 131321301302131 - 2³ = 131321301302123 is a prime.

It is a super-2 number, since 2×131321301302131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131321301302096 and 131321301302105.

It is not an unprimeable number, because it can be changed into a prime (131321301302171) 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, 1238880200911 + ... + 1238880201016.

It is an arithmetic number, because the mean of its divisors is an integer number (33449765426028).

Almost surely, 2^{131321301302131} is an apocalyptic number.

131321301302131 is a deficient number, since it is larger than the sum of its proper divisors (2477760401981).

131321301302131 is an equidigital number, since it uses as much as digits as its factorization.

131321301302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477760401980.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 131321301302131 its reverse (131203103123131), we get a palindrome (262524404425262).

The spelling of 131321301302131 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, three hundred one million, three hundred two thousand, one hundred thirty-one".