1320389199 has 12 divisors (see below), whose sum is σ = 1915212000. Its totient is φ = 876574944.

The previous prime is 1320389153. The next prime is 1320389207. The reversal of 1320389199 is 9919830231.

It is a happy number.

It is not a de Polignac number, because 1320389199 - 2⁷ = 1320389071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320389299) 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 11 ways as a sum of consecutive naturals, for example, 304774 + ... + 309075.

It is an arithmetic number, because the mean of its divisors is an integer number (159601000).

Almost surely, 2^1320389199 is an apocalyptic number.

1320389199 is a deficient number, since it is larger than the sum of its proper divisors (594822801).

1320389199 is a wasteful number, since it uses less digits than its factorization.

1320389199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614094 (or 614091 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 1320389199 is about 36337.1600293694. The cubic root of 1320389199 is about 1097.0691120753.

The spelling of 1320389199 in words is "one billion, three hundred twenty million, three hundred eighty-nine thousand, one hundred ninety-nine".