1103321023 has 4 divisors (see below), whose sum is σ = 1260938320. Its totient is φ = 945703728.

The previous prime is 1103321003. The next prime is 1103321027. The reversal of 1103321023 is 3201233011.

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

It is a cyclic number.

It is not a de Polignac number, because 1103321023 - 2²⁵ = 1069766591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103320988 and 1103321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103321027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78808638 + ... + 78808651.

It is an arithmetic number, because the mean of its divisors is an integer number (315234580).

Almost surely, 2^1103321023 is an apocalyptic number.

1103321023 is a deficient number, since it is larger than the sum of its proper divisors (157617297).

1103321023 is an equidigital number, since it uses as much as digits as its factorization.

1103321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157617296.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1103321023 is about 33216.2764770526. The cubic root of 1103321023 is about 1033.3179280973.

Adding to 1103321023 its reverse (3201233011), we get a palindrome (4304554034).

The spelling of 1103321023 in words is "one billion, one hundred three million, three hundred twenty-one thousand, twenty-three".