109312043 has 2 divisors, whose sum is σ = 109312044. Its totient is φ = 109312042.

The previous prime is 109312037. The next prime is 109312081. The reversal of 109312043 is 340213901.

It is a weak prime.

It is an emirp because it is prime and its reverse (340213901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109312043 - 2¹⁶ = 109246507 is a prime.

It is not a weakly prime, because it can be changed into another prime (109312013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54656021 + 54656022.

It is an arithmetic number, because the mean of its divisors is an integer number (54656022).

Almost surely, 2^109312043 is an apocalyptic number.

109312043 is a deficient number, since it is larger than the sum of its proper divisors (1).

109312043 is an equidigital number, since it uses as much as digits as its factorization.

109312043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 109312043 is about 10455.2399781162. The cubic root of 109312043 is about 478.1410200564.

Adding to 109312043 its reverse (340213901), we get a palindrome (449525944).

The spelling of 109312043 in words is "one hundred nine million, three hundred twelve thousand, forty-three".