1326920371199 has 4 divisors (see below), whose sum is σ = 1327108088040. Its totient is φ = 1326732654360.

The previous prime is 1326920371193. The next prime is 1326920371237. The reversal of 1326920371199 is 9911730296231.

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 1326920371199 - 2¹² = 1326920367103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1326920371199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326920371193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93847817 + ... + 93861954.

It is an arithmetic number, because the mean of its divisors is an integer number (331777022010).

Almost surely, 2^{1326920371199} is an apocalyptic number.

1326920371199 is a deficient number, since it is larger than the sum of its proper divisors (187716841).

1326920371199 is an equidigital number, since it uses as much as digits as its factorization.

1326920371199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187716840.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 1326920371199 in words is "one trillion, three hundred twenty-six billion, nine hundred twenty million, three hundred seventy-one thousand, one hundred ninety-nine".