111120439 has 2 divisors, whose sum is σ = 111120440. Its totient is φ = 111120438.

The previous prime is 111120433. The next prime is 111120481. The reversal of 111120439 is 934021111.

It is a weak prime.

It is an emirp because it is prime and its reverse (934021111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111120439 - 2⁷ = 111120311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111120433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560219 + 55560220.

It is an arithmetic number, because the mean of its divisors is an integer number (55560220).

Almost surely, 2^111120439 is an apocalyptic number.

111120439 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120439 is an equidigital number, since it uses as much as digits as its factorization.

111120439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 111120439 is about 10541.3679852285. The cubic root of 111120439 is about 480.7633095364.

The spelling of 111120439 in words is "one hundred eleven million, one hundred twenty thousand, four hundred thirty-nine".