131303031213 has 4 divisors (see below), whose sum is σ = 175070708288. Its totient is φ = 87535354140.

The previous prime is 131303031193. The next prime is 131303031217. The reversal of 131303031213 is 312130303131.

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: 312130303131 = 3 ⋅104043434377.

It is not a de Polignac number, because 131303031213 - 2⁶ = 131303031149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131303031213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303031217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21883838533 + ... + 21883838538.

It is an arithmetic number, because the mean of its divisors is an integer number (43767677072).

Almost surely, 2^131303031213 is an apocalyptic number.

It is an amenable number.

131303031213 is a deficient number, since it is larger than the sum of its proper divisors (43767677075).

131303031213 is an equidigital number, since it uses as much as digits as its factorization.

131303031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43767677074.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 131303031213 its reverse (312130303131), we get a palindrome (443433334344).

The spelling of 131303031213 in words is "one hundred thirty-one billion, three hundred three million, thirty-one thousand, two hundred thirteen".