43223113 has 2 divisors, whose sum is σ = 43223114. Its totient is φ = 43223112.

The previous prime is 43223111. The next prime is 43223149. The reversal of 43223113 is 31132234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41512249 + 1710864 = 6443^2 + 1308^2 .

It is a cyclic number.

It is not a de Polignac number, because 43223113 - 2¹ = 43223111 is a prime.

Together with 43223111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43223111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21611556 + 21611557.

It is an arithmetic number, because the mean of its divisors is an integer number (21611557).

Almost surely, 2^43223113 is an apocalyptic number.

It is an amenable number.

43223113 is a deficient number, since it is larger than the sum of its proper divisors (1).

43223113 is an equidigital number, since it uses as much as digits as its factorization.

43223113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 43223113 is about 6574.4287204289. The cubic root of 43223113 is about 350.9446941159.

Adding to 43223113 its reverse (31132234), we get a palindrome (74355347).

The spelling of 43223113 in words is "forty-three million, two hundred twenty-three thousand, one hundred thirteen".