111905243 has 2 divisors, whose sum is σ = 111905244. Its totient is φ = 111905242.

The previous prime is 111905219. The next prime is 111905267. The reversal of 111905243 is 342509111.

It is a balanced prime because it is at equal distance from previous prime (111905219) and next prime (111905267).

It is a cyclic number.

It is not a de Polignac number, because 111905243 - 2¹² = 111901147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111905743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55952621 + 55952622.

It is an arithmetic number, because the mean of its divisors is an integer number (55952622).

Almost surely, 2^111905243 is an apocalyptic number.

111905243 is a deficient number, since it is larger than the sum of its proper divisors (1).

111905243 is an equidigital number, since it uses as much as digits as its factorization.

111905243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 111905243 is about 10578.5274495083. The cubic root of 111905243 is about 481.8924752834.

The spelling of 111905243 in words is "one hundred eleven million, nine hundred five thousand, two hundred forty-three".