111091223 has 2 divisors, whose sum is σ = 111091224. Its totient is φ = 111091222.

The previous prime is 111091217. The next prime is 111091247. The reversal of 111091223 is 322190111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111091223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111091195 and 111091204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111091273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55545611 + 55545612.

It is an arithmetic number, because the mean of its divisors is an integer number (55545612).

Almost surely, 2^111091223 is an apocalyptic number.

111091223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111091223 is an equidigital number, since it uses as much as digits as its factorization.

111091223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 111091223 is about 10539.9821157344. The cubic root of 111091223 is about 480.7211714379.

The spelling of 111091223 in words is "one hundred eleven million, ninety-one thousand, two hundred twenty-three".