1320340053 has 4 divisors (see below), whose sum is σ = 1760453408. Its totient is φ = 880226700.

The previous prime is 1320340019. The next prime is 1320340117. The reversal of 1320340053 is 3500430231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3500430231 = 3 ⋅1166810077.

It is not a de Polignac number, because 1320340053 - 2¹⁸ = 1320077909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320340253) 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, 220056673 + ... + 220056678.

It is an arithmetic number, because the mean of its divisors is an integer number (440113352).

Almost surely, 2^1320340053 is an apocalyptic number.

It is an amenable number.

1320340053 is a deficient number, since it is larger than the sum of its proper divisors (440113355).

1320340053 is an equidigital number, since it uses as much as digits as its factorization.

1320340053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440113354.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 1320340053 is about 36336.4837731996. The cubic root of 1320340053 is about 1097.0555006271.

Adding to 1320340053 its reverse (3500430231), we get a palindrome (4820770284).

The spelling of 1320340053 in words is "one billion, three hundred twenty million, three hundred forty thousand, fifty-three".