1330120065 has 16 divisors (see below), whose sum is σ = 2168347968. Its totient is φ = 696012096.

The previous prime is 1330120063. The next prime is 1330120081. The reversal of 1330120065 is 5600210331.

It is not a de Polignac number, because 1330120065 - 2¹ = 1330120063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330120063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835759 + ... + 837348.

It is an arithmetic number, because the mean of its divisors is an integer number (135521748).

Almost surely, 2^1330120065 is an apocalyptic number.

1330120065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1330120065 is a deficient number, since it is larger than the sum of its proper divisors (838227903).

1330120065 is a wasteful number, since it uses less digits than its factorization.

1330120065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673168.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1330120065 is about 36470.8111371272. The cubic root of 1330120065 is about 1099.7575402253.

Adding to 1330120065 its reverse (5600210331), we get a palindrome (6930330396).

The spelling of 1330120065 in words is "one billion, three hundred thirty million, one hundred twenty thousand, sixty-five".