111043139 has 2 divisors, whose sum is σ = 111043140. Its totient is φ = 111043138.

The previous prime is 111043081. The next prime is 111043151. The reversal of 111043139 is 931340111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111043139 - 2¹² = 111039043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111043159) 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, 55521569 + 55521570.

It is an arithmetic number, because the mean of its divisors is an integer number (55521570).

Almost surely, 2^111043139 is an apocalyptic number.

111043139 is a deficient number, since it is larger than the sum of its proper divisors (1).

111043139 is an equidigital number, since it uses as much as digits as its factorization.

111043139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 111043139 is about 10537.7008403162. The cubic root of 111043139 is about 480.6518040238.

The spelling of 111043139 in words is "one hundred eleven million, forty-three thousand, one hundred thirty-nine".