131210203313 has 4 divisors (see below), whose sum is σ = 149954518080. Its totient is φ = 112465888548.

The previous prime is 131210203253. The next prime is 131210203331. The reversal of 131210203313 is 313302012131.

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: 313302012131 = 41 ⋅7641512491.

It is a cyclic number.

It is not a de Polignac number, because 131210203313 - 2²² = 131206009009 is a prime.

It is a super-2 number, since 2×131210203313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131213203313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9372157373 + ... + 9372157386.

It is an arithmetic number, because the mean of its divisors is an integer number (37488629520).

Almost surely, 2^131210203313 is an apocalyptic number.

It is an amenable number.

131210203313 is a deficient number, since it is larger than the sum of its proper divisors (18744314767).

131210203313 is an equidigital number, since it uses as much as digits as its factorization.

131210203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744314766.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131210203313 its reverse (313302012131), we get a palindrome (444512215444).

The spelling of 131210203313 in words is "one hundred thirty-one billion, two hundred ten million, two hundred three thousand, three hundred thirteen".