1103432321 has 8 divisors (see below), whose sum is σ = 1144141824. Its totient is φ = 1063042560.

The previous prime is 1103432287. The next prime is 1103432347. The reversal of 1103432321 is 1232343011.

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 1103432321 - 2¹⁰ = 1103431297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103432293 and 1103432302.

It is not an unprimeable number, because it can be changed into a prime (1103431321) 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, 72896 + ... + 86721.

It is an arithmetic number, because the mean of its divisors is an integer number (143017728).

Almost surely, 2^1103432321 is an apocalyptic number.

It is an amenable number.

1103432321 is a deficient number, since it is larger than the sum of its proper divisors (40709503).

1103432321 is a wasteful number, since it uses less digits than its factorization.

1103432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159871.

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

The square root of 1103432321 is about 33217.9517881521. The cubic root of 1103432321 is about 1033.3526723979.

Adding to 1103432321 its reverse (1232343011), we get a palindrome (2335775332).

The spelling of 1103432321 in words is "one billion, one hundred three million, four hundred thirty-two thousand, three hundred twenty-one".