1321301199 has 4 divisors (see below), whose sum is σ = 1761734936. Its totient is φ = 880867464.

The previous prime is 1321301147. The next prime is 1321301207. The reversal of 1321301199 is 9911031231.

It is a happy number.

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

It is not a de Polignac number, because 1321301199 - 2¹¹ = 1321299151 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 (1321301099) 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, 220216864 + ... + 220216869.

It is an arithmetic number, because the mean of its divisors is an integer number (440433734).

Almost surely, 2^1321301199 is an apocalyptic number.

1321301199 is a deficient number, since it is larger than the sum of its proper divisors (440433737).

1321301199 is an equidigital number, since it uses as much as digits as its factorization.

1321301199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440433736.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 1321301199 is about 36349.7070001947. The cubic root of 1321301199 is about 1097.3216378111.

The spelling of 1321301199 in words is "one billion, three hundred twenty-one million, three hundred one thousand, one hundred ninety-nine".