131203031341321 has 4 divisors (see below), whose sum is σ = 131240918445952. Its totient is φ = 131165144236692.

The previous prime is 131203031341297. The next prime is 131203031341331. The reversal of 131203031341321 is 123143130302131.

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 a de Polignac number, because none of the positive numbers 2^k-131203031341321 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 131203031341321.

It is not an unprimeable number, because it can be changed into a prime (131203031341331) 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, 18943547121 + ... + 18943554046.

It is an arithmetic number, because the mean of its divisors is an integer number (32810229611488).

Almost surely, 2^{131203031341321} is an apocalyptic number.

It is an amenable number.

131203031341321 is a deficient number, since it is larger than the sum of its proper divisors (37887104631).

131203031341321 is an equidigital number, since it uses as much as digits as its factorization.

131203031341321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37887104630.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131203031341321 its reverse (123143130302131), we get a palindrome (254346161643452).

The spelling of 131203031341321 in words is "one hundred thirty-one trillion, two hundred three billion, thirty-one million, three hundred forty-one thousand, three hundred twenty-one".