131323321033 has 4 divisors (see below), whose sum is σ = 131326218900. Its totient is φ = 131320423168.

The previous prime is 131323321027. The next prime is 131323321043. The reversal of 131323321033 is 330123323131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6426106569 + 124897214464 = 80163^2 + 353408^2 .

It is a cyclic number.

It is not a de Polignac number, because 131323321033 - 2²⁹ = 130786450121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131323320989 and 131323321007.

It is not an unprimeable number, because it can be changed into a prime (131323321043) 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, 1379860 + ... + 1471957.

It is an arithmetic number, because the mean of its divisors is an integer number (32831554725).

Almost surely, 2^131323321033 is an apocalyptic number.

It is an amenable number.

131323321033 is a deficient number, since it is larger than the sum of its proper divisors (2897867).

131323321033 is an equidigital number, since it uses as much as digits as its factorization.

131323321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897866.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 131323321033 its reverse (330123323131), we get a palindrome (461446644164).

The spelling of 131323321033 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, thirty-three".