111342443 has 2 divisors, whose sum is σ = 111342444. Its totient is φ = 111342442.

The previous prime is 111342433. The next prime is 111342457. The reversal of 111342443 is 344243111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111342443 - 2²⁰ = 110293867 is a prime.

It is a super-2 number, since 2×111342443² = 24794279226416498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111342433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55671221 + 55671222.

It is an arithmetic number, because the mean of its divisors is an integer number (55671222).

Almost surely, 2^111342443 is an apocalyptic number.

111342443 is a deficient number, since it is larger than the sum of its proper divisors (1).

111342443 is an equidigital number, since it uses as much as digits as its factorization.

111342443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 111342443 is about 10551.8928633682. The cubic root of 111342443 is about 481.0832638104.

Adding to 111342443 its reverse (344243111), we get a palindrome (455585554).

The spelling of 111342443 in words is "one hundred eleven million, three hundred forty-two thousand, four hundred forty-three".