113543321 has 2 divisors, whose sum is σ = 113543322. Its totient is φ = 113543320.

The previous prime is 113543299. The next prime is 113543327. The reversal of 113543321 is 123345311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57592921 + 55950400 = 7589^2 + 7480^2 .

It is a cyclic number.

It is not a de Polignac number, because 113543321 - 2¹⁴ = 113526937 is a prime.

It is not a weakly prime, because it can be changed into another prime (113543327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56771660 + 56771661.

It is an arithmetic number, because the mean of its divisors is an integer number (56771661).

Almost surely, 2^113543321 is an apocalyptic number.

It is an amenable number.

113543321 is a deficient number, since it is larger than the sum of its proper divisors (1).

113543321 is an equidigital number, since it uses as much as digits as its factorization.

113543321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 113543321 is about 10655.6708376338. The cubic root of 113543321 is about 484.2324217247.

Adding to 113543321 its reverse (123345311), we get a palindrome (236888632).

The spelling of 113543321 in words is "one hundred thirteen million, five hundred forty-three thousand, three hundred twenty-one".