131020201313 has 4 divisors (see below), whose sum is σ = 131021637888. Its totient is φ = 131018764740.

The previous prime is 131020201309. The next prime is 131020201343. The reversal of 131020201313 is 313102020131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313102020131 = 157 ⋅1994280383.

It is a cyclic number.

It is not a de Polignac number, because 131020201313 - 2² = 131020201309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131020201291 and 131020201300.

It is not an unprimeable number, because it can be changed into a prime (131020201303) 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, 571481 + ... + 767222.

It is an arithmetic number, because the mean of its divisors is an integer number (32755409472).

Almost surely, 2^131020201313 is an apocalyptic number.

It is an amenable number.

131020201313 is a deficient number, since it is larger than the sum of its proper divisors (1436575).

131020201313 is an equidigital number, since it uses as much as digits as its factorization.

131020201313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436574.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131020201313 its reverse (313102020131), we get a palindrome (444122221444).

It can be divided in two parts, 13102020131 and 3, that multiplied together give a palindrome (39306060393).

The spelling of 131020201313 in words is "one hundred thirty-one billion, twenty million, two hundred one thousand, three hundred thirteen".