1331065113 has 16 divisors (see below), whose sum is σ = 2098231680. Its totient is φ = 734380416.

The previous prime is 1331065097. The next prime is 1331065117. The reversal of 1331065113 is 3115601331.

It is not a de Polignac number, because 1331065113 - 2⁴ = 1331065097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1331065117) 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, 1092220 + ... + 1093437.

It is an arithmetic number, because the mean of its divisors is an integer number (131139480).

Almost surely, 2^1331065113 is an apocalyptic number.

It is an amenable number.

1331065113 is a deficient number, since it is larger than the sum of its proper divisors (767166567).

1331065113 is a wasteful number, since it uses less digits than its factorization.

1331065113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185696.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 1331065113 is about 36483.7650606403. The cubic root of 1331065113 is about 1100.0179371731.

Adding to 1331065113 its reverse (3115601331), we get a palindrome (4446666444).

The spelling of 1331065113 in words is "one billion, three hundred thirty-one million, sixty-five thousand, one hundred thirteen".