1113324021 has 10 divisors (see below), whose sum is σ = 1663113782. Its totient is φ = 742215960.

The previous prime is 1113324001. The next prime is 1113324029. The reversal of 1113324021 is 1204233111.

It can be written as a sum of positive squares in only one way, i.e., 870899121 + 242424900 = 29511^2 + 15570^2 .

It is not a de Polignac number, because 1113324021 - 2¹⁰ = 1113322997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113323985 and 1113324003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113324029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6872290 + ... + 6872451.

Almost surely, 2^1113324021 is an apocalyptic number.

It is an amenable number.

1113324021 is a deficient number, since it is larger than the sum of its proper divisors (549789761).

1113324021 is an equidigital number, since it uses as much as digits as its factorization.

1113324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744753 (or 13744744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1113324021 is about 33366.5104708299. The cubic root of 1113324021 is about 1036.4313152289.

Adding to 1113324021 its reverse (1204233111), we get a palindrome (2317557132).

The spelling of 1113324021 in words is "one billion, one hundred thirteen million, three hundred twenty-four thousand, twenty-one".