1330331999 has 4 divisors (see below), whose sum is σ = 1337297280. Its totient is φ = 1323366720.

The previous prime is 1330331953. The next prime is 1330332007. The reversal of 1330331999 is 9991330331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1330331999 - 2²⁸ = 1061896543 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 (1330331909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482354 + ... + 3482735.

It is an arithmetic number, because the mean of its divisors is an integer number (334324320).

Almost surely, 2^1330331999 is an apocalyptic number.

1330331999 is a deficient number, since it is larger than the sum of its proper divisors (6965281).

1330331999 is an equidigital number, since it uses as much as digits as its factorization.

1330331999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965280.

The product of its (nonzero) digits is 59049, while the sum is 41.

The square root of 1330331999 is about 36473.7165504148. The cubic root of 1330331999 is about 1099.8159468917.

The spelling of 1330331999 in words is "one billion, three hundred thirty million, three hundred thirty-one thousand, nine hundred ninety-nine".