1320451199 has 2 divisors, whose sum is σ = 1320451200. Its totient is φ = 1320451198.

The previous prime is 1320451193. The next prime is 1320451241. The reversal of 1320451199 is 9911540231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320451199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320451193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660225599 + 660225600.

It is an arithmetic number, because the mean of its divisors is an integer number (660225600).

Almost surely, 2^1320451199 is an apocalyptic number.

1320451199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320451199 is an equidigital number, since it uses as much as digits as its factorization.

1320451199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1320451199 is about 36338.0131405117. The cubic root of 1320451199 is about 1097.0862830782.

The spelling of 1320451199 in words is "one billion, three hundred twenty million, four hundred fifty-one thousand, one hundred ninety-nine".