1103120303 has 4 divisors (see below), whose sum is σ = 1103292288. Its totient is φ = 1102948320.

The previous prime is 1103120281. The next prime is 1103120321. The reversal of 1103120303 is 3030213011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103120303 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 (1103120353) 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, 75983 + ... + 89328.

It is an arithmetic number, because the mean of its divisors is an integer number (275823072).

Almost surely, 2^1103120303 is an apocalyptic number.

1103120303 is a deficient number, since it is larger than the sum of its proper divisors (171985).

1103120303 is an equidigital number, since it uses as much as digits as its factorization.

1103120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171984.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1103120303 is about 33213.2549293200. The cubic root of 1103120303 is about 1033.2552626993.

Adding to 1103120303 its reverse (3030213011), we get a palindrome (4133333314).

The spelling of 1103120303 in words is "one billion, one hundred three million, one hundred twenty thousand, three hundred three".