111242119 has 2 divisors, whose sum is σ = 111242120. Its totient is φ = 111242118.

The previous prime is 111242083. The next prime is 111242123. The reversal of 111242119 is 911242111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111242119 is a prime.

It is a super-2 number, since 2×111242119² = 24749618079220322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111242119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111242819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55621059 + 55621060.

It is an arithmetic number, because the mean of its divisors is an integer number (55621060).

Almost surely, 2^111242119 is an apocalyptic number.

111242119 is a deficient number, since it is larger than the sum of its proper divisors (1).

111242119 is an equidigital number, since it uses as much as digits as its factorization.

111242119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 22.

The square root of 111242119 is about 10547.1379530183. The cubic root of 111242119 is about 480.9387286289.

The spelling of 111242119 in words is "one hundred eleven million, two hundred forty-two thousand, one hundred nineteen".