1320501053 has 2 divisors, whose sum is σ = 1320501054. Its totient is φ = 1320501052.

The previous prime is 1320501041. The next prime is 1320501073. The reversal of 1320501053 is 3501050231.

It is an a-pointer prime, because the next prime (1320501073) can be obtained adding 1320501053 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1149074404 + 171426649 = 33898^2 + 13093^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320501053 - 2²² = 1316306749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320501073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660250526 + 660250527.

It is an arithmetic number, because the mean of its divisors is an integer number (660250527).

Almost surely, 2^1320501053 is an apocalyptic number.

It is an amenable number.

1320501053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320501053 is an equidigital number, since it uses as much as digits as its factorization.

1320501053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1320501053 is about 36338.6991099021. The cubic root of 1320501053 is about 1097.1000898364.

Adding to 1320501053 its reverse (3501050231), we get a palindrome (4821551284).

The spelling of 1320501053 in words is "one billion, three hundred twenty million, five hundred one thousand, fifty-three".