111320047 has 2 divisors, whose sum is σ = 111320048. Its totient is φ = 111320046.

The previous prime is 111319997. The next prime is 111320051. The reversal of 111320047 is 740023111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111320047 - 2⁷ = 111319919 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111320057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55660023 + 55660024.

It is an arithmetic number, because the mean of its divisors is an integer number (55660024).

Almost surely, 2^111320047 is an apocalyptic number.

111320047 is a deficient number, since it is larger than the sum of its proper divisors (1).

111320047 is an equidigital number, since it uses as much as digits as its factorization.

111320047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 111320047 is about 10550.8315786008. The cubic root of 111320047 is about 481.0510057814.

Adding to 111320047 its reverse (740023111), we get a palindrome (851343158).

The spelling of 111320047 in words is "one hundred eleven million, three hundred twenty thousand, forty-seven".