1320325733 has 4 divisors (see below), whose sum is σ = 1320428268. Its totient is φ = 1320223200.

The previous prime is 1320325697. The next prime is 1320325781. The reversal of 1320325733 is 3375230231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 595262404 + 725063329 = 24398^2 + 26927^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320325733 - 2⁸ = 1320325477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320325696 and 1320325705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320325133) 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, 28616 + ... + 58817.

It is an arithmetic number, because the mean of its divisors is an integer number (330107067).

Almost surely, 2^1320325733 is an apocalyptic number.

It is an amenable number.

1320325733 is a deficient number, since it is larger than the sum of its proper divisors (102535).

1320325733 is an equidigital number, since it uses as much as digits as its factorization.

1320325733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102534.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 1320325733 is about 36336.2867255310. The cubic root of 1320325733 is about 1097.0515345045.

Adding to 1320325733 its reverse (3375230231), we get a palindrome (4695555964).

The spelling of 1320325733 in words is "one billion, three hundred twenty million, three hundred twenty-five thousand, seven hundred thirty-three".