111399347 has 2 divisors, whose sum is σ = 111399348. Its totient is φ = 111399346.

The previous prime is 111399331. The next prime is 111399361. The reversal of 111399347 is 743993111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111399347 - 2⁴ = 111399331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111399347.

It is not a weakly prime, because it can be changed into another prime (111399377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55699673 + 55699674.

It is an arithmetic number, because the mean of its divisors is an integer number (55699674).

Almost surely, 2^111399347 is an apocalyptic number.

111399347 is a deficient number, since it is larger than the sum of its proper divisors (1).

111399347 is an equidigital number, since it uses as much as digits as its factorization.

111399347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 38.

The square root of 111399347 is about 10554.5889072005. The cubic root of 111399347 is about 481.1652059072.

The spelling of 111399347 in words is "one hundred eleven million, three hundred ninety-nine thousand, three hundred forty-seven".