1320256033 has 2 divisors, whose sum is σ = 1320256034. Its totient is φ = 1320256032.

The previous prime is 1320256019. The next prime is 1320256079. The reversal of 1320256033 is 3306520231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313845009 + 6411024 = 36247^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320256033 - 2²⁹ = 783385121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1320255989 and 1320256007.

It is not a weakly prime, because it can be changed into another prime (1320256013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660128016 + 660128017.

It is an arithmetic number, because the mean of its divisors is an integer number (660128017).

Almost surely, 2^1320256033 is an apocalyptic number.

It is an amenable number.

1320256033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320256033 is an equidigital number, since it uses as much as digits as its factorization.

1320256033 is an evil number, because the sum of its binary digits is even.

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

The square root of 1320256033 is about 36335.3276165222. The cubic root of 1320256033 is about 1097.0322297134.

Adding to 1320256033 its reverse (3306520231), we get a palindrome (4626776264).

The spelling of 1320256033 in words is "one billion, three hundred twenty million, two hundred fifty-six thousand, thirty-three".