131120302321 has 4 divisors (see below), whose sum is σ = 132000304500. Its totient is φ = 130240300144.

The previous prime is 131120302319. The next prime is 131120302331. The reversal of 131120302321 is 123203021131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123203021131 = 29 ⋅4248380039.

It can be written as a sum of positive squares in 2 ways, for example, as 19631092321 + 111489210000 = 140111^2 + 333900^2 .

It is a cyclic number.

It is not a de Polignac number, because 131120302321 - 2¹ = 131120302319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131120302331) 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, 440000866 + ... + 440001163.

It is an arithmetic number, because the mean of its divisors is an integer number (33000076125).

Almost surely, 2^131120302321 is an apocalyptic number.

It is an amenable number.

131120302321 is a deficient number, since it is larger than the sum of its proper divisors (880002179).

131120302321 is an equidigital number, since it uses as much as digits as its factorization.

131120302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880002178.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131120302321 its reverse (123203021131), we get a palindrome (254323323452).

The spelling of 131120302321 in words is "one hundred thirty-one billion, one hundred twenty million, three hundred two thousand, three hundred twenty-one".