131131230323 has 4 divisors (see below), whose sum is σ = 132404349168. Its totient is φ = 129858111480.

The previous prime is 131131230287. The next prime is 131131230397. The reversal of 131131230323 is 323032131131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131131230323 - 2⁶ = 131131230259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131121230323) 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, 636559268 + ... + 636559473.

It is an arithmetic number, because the mean of its divisors is an integer number (33101087292).

Almost surely, 2^131131230323 is an apocalyptic number.

131131230323 is a deficient number, since it is larger than the sum of its proper divisors (1273118845).

131131230323 is a wasteful number, since it uses less digits than its factorization.

131131230323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273118844.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 131131230323 its reverse (323032131131), we get a palindrome (454163361454).

The spelling of 131131230323 in words is "one hundred thirty-one billion, one hundred thirty-one million, two hundred thirty thousand, three hundred twenty-three".