131343545323 has 2 divisors, whose sum is σ = 131343545324. Its totient is φ = 131343545322.

The previous prime is 131343545303. The next prime is 131343545357. The reversal of 131343545323 is 323545343131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131343545323 - 2²⁵ = 131309990891 is a prime.

It is a super-2 number, since 2×131343545323² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131343545303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65671772661 + 65671772662.

It is an arithmetic number, because the mean of its divisors is an integer number (65671772662).

Almost surely, 2^131343545323 is an apocalyptic number.

131343545323 is a deficient number, since it is larger than the sum of its proper divisors (1).

131343545323 is an equidigital number, since it uses as much as digits as its factorization.

131343545323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 37.

Adding to 131343545323 its reverse (323545343131), we get a palindrome (454888888454).

The spelling of 131343545323 in words is "one hundred thirty-one billion, three hundred forty-three million, five hundred forty-five thousand, three hundred twenty-three".