1330313121 has 12 divisors (see below), whose sum is σ = 2034596772. Its totient is φ = 834706176.

The previous prime is 1330313111. The next prime is 1330313129. The reversal of 1330313121 is 1213130331.

It is a happy number.

1330313121 is a `hidden beast` number, since 1 + 330 + 313 + 1 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 518063121 + 812250000 = 22761^2 + 28500^2 .

It is not a de Polignac number, because 1330313121 - 2¹⁹ = 1329788833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330313094 and 1330313103.

It is not an unprimeable number, because it can be changed into a prime (1330313129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4347276 + ... + 4347581.

It is an arithmetic number, because the mean of its divisors is an integer number (169549731).

Almost surely, 2^1330313121 is an apocalyptic number.

It is an amenable number.

1330313121 is a deficient number, since it is larger than the sum of its proper divisors (704283651).

1330313121 is a wasteful number, since it uses less digits than its factorization.

1330313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694880 (or 8694877 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1330313121 is about 36473.4577604043. The cubic root of 1330313121 is about 1099.8107445754.

Adding to 1330313121 its reverse (1213130331), we get a palindrome (2543443452).

The spelling of 1330313121 in words is "one billion, three hundred thirty million, three hundred thirteen thousand, one hundred twenty-one".