323130133 has 2 divisors, whose sum is σ = 323130134. Its totient is φ = 323130132.

The previous prime is 323130097. The next prime is 323130161. The reversal of 323130133 is 331031323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264485169 + 58644964 = 16263^2 + 7658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323130133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 323130133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323130833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161565066 + 161565067.

It is an arithmetic number, because the mean of its divisors is an integer number (161565067).

Almost surely, 2^323130133 is an apocalyptic number.

It is an amenable number.

323130133 is a deficient number, since it is larger than the sum of its proper divisors (1).

323130133 is an equidigital number, since it uses as much as digits as its factorization.

323130133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 323130133 is about 17975.8207879362. The cubic root of 323130133 is about 686.2133346701.

Adding to 323130133 its reverse (331031323), we get a palindrome (654161456).

The spelling of 323130133 in words is "three hundred twenty-three million, one hundred thirty thousand, one hundred thirty-three".