1320316365 has 16 divisors (see below), whose sum is σ = 2223691200. Its totient is φ = 667107072.

The previous prime is 1320316363. The next prime is 1320316397. The reversal of 1320316365 is 5636130231.

It is a happy number.

It is not a de Polignac number, because 1320316365 - 2¹ = 1320316363 is a prime.

It is a super-3 number, since 3×1320316365³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320316363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2316060 + ... + 2316629.

It is an arithmetic number, because the mean of its divisors is an integer number (138980700).

Almost surely, 2^1320316365 is an apocalyptic number.

1320316365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1320316365 is a deficient number, since it is larger than the sum of its proper divisors (903374835).

1320316365 is a wasteful number, since it uses less digits than its factorization.

1320316365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632716.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1320316365 is about 36336.1578183495. The cubic root of 1320316365 is about 1097.0489398915.

Adding to 1320316365 its reverse (5636130231), we get a palindrome (6956446596).

The spelling of 1320316365 in words is "one billion, three hundred twenty million, three hundred sixteen thousand, three hundred sixty-five".