111442313 has 2 divisors, whose sum is σ = 111442314. Its totient is φ = 111442312.

The previous prime is 111442307. The next prime is 111442321. The reversal of 111442313 is 313244111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77651344 + 33790969 = 8812^2 + 5813^2 .

It is an emirp because it is prime and its reverse (313244111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111442313 - 2⁸ = 111442057 is a prime.

It is not a weakly prime, because it can be changed into another prime (111442333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721156 + 55721157.

It is an arithmetic number, because the mean of its divisors is an integer number (55721157).

Almost surely, 2^111442313 is an apocalyptic number.

It is an amenable number.

111442313 is a deficient number, since it is larger than the sum of its proper divisors (1).

111442313 is an equidigital number, since it uses as much as digits as its factorization.

111442313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 111442313 is about 10556.6241289533. The cubic root of 111442313 is about 481.2270587141.

Adding to 111442313 its reverse (313244111), we get a palindrome (424686424).

The spelling of 111442313 in words is "one hundred eleven million, four hundred forty-two thousand, three hundred thirteen".