131021300013 has 4 divisors (see below), whose sum is σ = 174695066688. Its totient is φ = 87347533340.

The previous prime is 131021299987. The next prime is 131021300023. The reversal of 131021300013 is 310003120131.

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 131021300013 - 2⁶ = 131021299949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131021299965 and 131021300001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021300023) 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, 21836883333 + ... + 21836883338.

It is an arithmetic number, because the mean of its divisors is an integer number (43673766672).

Almost surely, 2^131021300013 is an apocalyptic number.

It is an amenable number.

131021300013 is a deficient number, since it is larger than the sum of its proper divisors (43673766675).

131021300013 is an equidigital number, since it uses as much as digits as its factorization.

131021300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43673766674.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 131021300013 its reverse (310003120131), we get a palindrome (441024420144).

The spelling of 131021300013 in words is "one hundred thirty-one billion, twenty-one million, three hundred thousand, thirteen".