1325443331 has 4 divisors (see below), whose sum is σ = 1337173032. Its totient is φ = 1313713632.

The previous prime is 1325443321. The next prime is 1325443337. The reversal of 1325443331 is 1333445231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333445231 = 769 ⋅1733999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325443331 is a prime.

It is a super-2 number, since 2×1325443331² = 3513600047384751122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325443294 and 1325443303.

It is not an unprimeable number, because it can be changed into a prime (1325443337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5864681 + ... + 5864906.

It is an arithmetic number, because the mean of its divisors is an integer number (334293258).

Almost surely, 2^1325443331 is an apocalyptic number.

1325443331 is a deficient number, since it is larger than the sum of its proper divisors (11729701).

1325443331 is a wasteful number, since it uses less digits than its factorization.

1325443331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11729700.

The product of its digits is 12960, while the sum is 29.

The square root of 1325443331 is about 36406.6385567248. The cubic root of 1325443331 is about 1098.4671020222.

Adding to 1325443331 its reverse (1333445231), we get a palindrome (2658888562).

The spelling of 1325443331 in words is "one billion, three hundred twenty-five million, four hundred forty-three thousand, three hundred thirty-one".