1325323231 has 2 divisors, whose sum is σ = 1325323232. Its totient is φ = 1325323230.

The previous prime is 1325323199. The next prime is 1325323289. The reversal of 1325323231 is 1323235231.

It is a weak prime.

It is an emirp because it is prime and its reverse (1323235231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1325323231 - 2⁵ = 1325323199 is a prime.

It is a super-2 number, since 2×1325323231² = 3512963333256558722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1325323196 and 1325323205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325323291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662661615 + 662661616.

It is an arithmetic number, because the mean of its divisors is an integer number (662661616).

Almost surely, 2^1325323231 is an apocalyptic number.

1325323231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325323231 is an equidigital number, since it uses as much as digits as its factorization.

1325323231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 1325323231 is about 36404.9890949029. The cubic root of 1325323231 is about 1098.4339232156.

Adding to 1325323231 its reverse (1323235231), we get a palindrome (2648558462).

The spelling of 1325323231 in words is "one billion, three hundred twenty-five million, three hundred twenty-three thousand, two hundred thirty-one".