131342200310021 has 4 divisors (see below), whose sum is σ = 135579045481344. Its totient is φ = 127105355138700.

The previous prime is 131342200309987. The next prime is 131342200310051. The reversal of 131342200310021 is 120013002243131.

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 131342200310021 - 2¹⁰ = 131342200308997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131342200310051) 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, 2118422585615 + ... + 2118422585676.

It is an arithmetic number, because the mean of its divisors is an integer number (33894761370336).

Almost surely, 2^{131342200310021} is an apocalyptic number.

It is an amenable number.

131342200310021 is a deficient number, since it is larger than the sum of its proper divisors (4236845171323).

131342200310021 is an equidigital number, since it uses as much as digits as its factorization.

131342200310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236845171322.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131342200310021 its reverse (120013002243131), we get a palindrome (251355202553152).

The spelling of 131342200310021 in words is "one hundred thirty-one trillion, three hundred forty-two billion, two hundred million, three hundred ten thousand, twenty-one".