11126432197 has 2 divisors, whose sum is σ = 11126432198. Its totient is φ = 11126432196.

The previous prime is 11126432189. The next prime is 11126432209. The reversal of 11126432197 is 79123462111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6386247396 + 4740184801 = 79914^2 + 68849^2 .

It is a cyclic number.

It is not a de Polignac number, because 11126432197 - 2³ = 11126432189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11126436197) 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 as a sum of consecutive naturals, namely, 5563216098 + 5563216099.

It is an arithmetic number, because the mean of its divisors is an integer number (5563216099).

Almost surely, 2^11126432197 is an apocalyptic number.

It is an amenable number.

11126432197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11126432197 is an equidigital number, since it uses as much as digits as its factorization.

11126432197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The spelling of 11126432197 in words is "eleven billion, one hundred twenty-six million, four hundred thirty-two thousand, one hundred ninety-seven".