1224011113 has 4 divisors (see below), whose sum is σ = 1318165828. Its totient is φ = 1129856400.

The previous prime is 1224011111. The next prime is 1224011143. The reversal of 1224011113 is 3111104221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 813219289 + 410791824 = 28517^2 + 20268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224011113 - 2¹ = 1224011111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224011111) 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 in 3 ways as a sum of consecutive naturals, for example, 47077338 + ... + 47077363.

It is an arithmetic number, because the mean of its divisors is an integer number (329541457).

Almost surely, 2^1224011113 is an apocalyptic number.

1224011113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1224011113 is a deficient number, since it is larger than the sum of its proper divisors (94154715).

1224011113 is an equidigital number, since it uses as much as digits as its factorization.

1224011113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94154714.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1224011113 is about 34985.8701906927. The cubic root of 1224011113 is about 1069.6994855840.

Adding to 1224011113 its reverse (3111104221), we get a palindrome (4335115334).

The spelling of 1224011113 in words is "one billion, two hundred twenty-four million, eleven thousand, one hundred thirteen".