9942052111 has 2 divisors, whose sum is σ = 9942052112. Its totient is φ = 9942052110.

The previous prime is 9942052103. The next prime is 9942052147. The reversal of 9942052111 is 1112502499.

9942052111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1112502499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9942052111 - 2³ = 9942052103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9942052411) 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 as a sum of consecutive naturals, namely, 4971026055 + 4971026056.

It is an arithmetic number, because the mean of its divisors is an integer number (4971026056).

Almost surely, 2^9942052111 is an apocalyptic number.

9942052111 is a deficient number, since it is larger than the sum of its proper divisors (1).

9942052111 is an equidigital number, since it uses as much as digits as its factorization.

9942052111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 9942052111 is about 99709.8395896814. The cubic root of 9942052111 is about 2150.2651276433.

The spelling of 9942052111 in words is "nine billion, nine hundred forty-two million, fifty-two thousand, one hundred eleven".