11012199971 has 2 divisors, whose sum is σ = 11012199972. Its totient is φ = 11012199970.

The previous prime is 11012199943. The next prime is 11012200021. The reversal of 11012199971 is 17999121011.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17999121011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11012199971 - 2⁶ = 11012199907 is a prime.

It is not a weakly prime, because it can be changed into another prime (11012199901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506099985 + 5506099986.

It is an arithmetic number, because the mean of its divisors is an integer number (5506099986).

Almost surely, 2^11012199971 is an apocalyptic number.

11012199971 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012199971 is an equidigital number, since it uses as much as digits as its factorization.

11012199971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 11012199971 in words is "eleven billion, twelve million, one hundred ninety-nine thousand, nine hundred seventy-one".