1103323421 has 4 divisors (see below), whose sum is σ = 1103698752. Its totient is φ = 1102948092.

The previous prime is 1103323411. The next prime is 1103323427. The reversal of 1103323421 is 1243233011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103323421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103323393 and 1103323402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103323427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183221 + ... + 189146.

It is an arithmetic number, because the mean of its divisors is an integer number (275924688).

Almost surely, 2^1103323421 is an apocalyptic number.

It is an amenable number.

1103323421 is a deficient number, since it is larger than the sum of its proper divisors (375331).

1103323421 is an equidigital number, since it uses as much as digits as its factorization.

1103323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375330.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1103323421 is about 33216.3125737942. The cubic root of 1103323421 is about 1033.3186767143.

Adding to 1103323421 its reverse (1243233011), we get a palindrome (2346556432).

The spelling of 1103323421 in words is "one billion, one hundred three million, three hundred twenty-three thousand, four hundred twenty-one".