11196920197 has 4 divisors (see below), whose sum is σ = 11224296940. Its totient is φ = 11169543456.

The previous prime is 11196920179. The next prime is 11196920227. The reversal of 11196920197 is 79102969111.

11196920197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79102969111 = 31 ⋅2551708681.

It can be written as a sum of positive squares in 2 ways, for example, as 5563817281 + 5633102916 = 74591^2 + 75054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11196920197 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 (11196920117) 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, 13687758 + ... + 13688575.

It is an arithmetic number, because the mean of its divisors is an integer number (2806074235).

Almost surely, 2^11196920197 is an apocalyptic number.

It is an amenable number.

11196920197 is a deficient number, since it is larger than the sum of its proper divisors (27376743).

11196920197 is an equidigital number, since it uses as much as digits as its factorization.

11196920197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376742.

The product of its (nonzero) digits is 61236, while the sum is 46.

The spelling of 11196920197 in words is "eleven billion, one hundred ninety-six million, nine hundred twenty thousand, one hundred ninety-seven".