11196812399 has 4 divisors (see below), whose sum is σ = 11197028136. Its totient is φ = 11196596664.

The previous prime is 11196812377. The next prime is 11196812513. The reversal of 11196812399 is 99321869111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11196812399 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 (11196812899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22517 + ... + 151329.

It is an arithmetic number, because the mean of its divisors is an integer number (2799257034).

Almost surely, 2^11196812399 is an apocalyptic number.

11196812399 is a deficient number, since it is larger than the sum of its proper divisors (215737).

11196812399 is an equidigital number, since it uses as much as digits as its factorization.

11196812399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215736.

The product of its digits is 209952, while the sum is 50.

The spelling of 11196812399 in words is "eleven billion, one hundred ninety-six million, eight hundred twelve thousand, three hundred ninety-nine".