11101112009947 has 2 divisors, whose sum is σ = 11101112009948. Its totient is φ = 11101112009946.

The previous prime is 11101112009921. The next prime is 11101112009959. The reversal of 11101112009947 is 74990021110111.

11101112009947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101112009947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101112009917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550556004973 + 5550556004974.

It is an arithmetic number, because the mean of its divisors is an integer number (5550556004974).

Almost surely, 2^{11101112009947} is an apocalyptic number.

11101112009947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101112009947 is an equidigital number, since it uses as much as digits as its factorization.

11101112009947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 11101112009947 in words is "eleven trillion, one hundred one billion, one hundred twelve million, nine thousand, nine hundred forty-seven".