1103443421 has 8 divisors (see below), whose sum is σ = 1107876000. Its totient is φ = 1099018800.

The previous prime is 1103443403. The next prime is 1103443433. The reversal of 1103443421 is 1243443011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103443421 - 2¹⁰ = 1103442397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103443441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505310 + ... + 507488.

It is an arithmetic number, because the mean of its divisors is an integer number (138484500).

Almost surely, 2^1103443421 is an apocalyptic number.

It is an amenable number.

1103443421 is a deficient number, since it is larger than the sum of its proper divisors (4432579).

1103443421 is a wasteful number, since it uses less digits than its factorization.

1103443421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1103443421 is about 33218.1188660646. The cubic root of 1103443421 is about 1033.3561373971.

Adding to 1103443421 its reverse (1243443011), we get a palindrome (2346886432).

The spelling of 1103443421 in words is "one billion, one hundred three million, four hundred forty-three thousand, four hundred twenty-one".