111429443 has 2 divisors, whose sum is σ = 111429444. Its totient is φ = 111429442.

The previous prime is 111429389. The next prime is 111429467. The reversal of 111429443 is 344924111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111429443 - 2²⁰ = 110380867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (111419443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55714721 + 55714722.

It is an arithmetic number, because the mean of its divisors is an integer number (55714722).

Almost surely, 2^111429443 is an apocalyptic number.

111429443 is a deficient number, since it is larger than the sum of its proper divisors (1).

111429443 is an equidigital number, since it uses as much as digits as its factorization.

111429443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 111429443 is about 10556.0145414830. The cubic root of 111429443 is about 481.2085330437.

The spelling of 111429443 in words is "one hundred eleven million, four hundred twenty-nine thousand, four hundred forty-three".