1103003121 has 8 divisors (see below), whose sum is σ = 1604368224. Its totient is φ = 668486720.

The previous prime is 1103003119. The next prime is 1103003173. The reversal of 1103003121 is 1213003011.

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

It is not a de Polignac number, because 1103003121 - 2¹ = 1103003119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103003097 and 1103003106.

It is not an unprimeable number, because it can be changed into a prime (1103003021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16712136 + ... + 16712201.

It is an arithmetic number, because the mean of its divisors is an integer number (200546028).

Almost surely, 2^1103003121 is an apocalyptic number.

1103003121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103003121 is a deficient number, since it is larger than the sum of its proper divisors (501365103).

1103003121 is a wasteful number, since it uses less digits than its factorization.

1103003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33424351.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1103003121 is about 33211.4907976140. The cubic root of 1103003121 is about 1033.2186746059.

Adding to 1103003121 its reverse (1213003011), we get a palindrome (2316006132).

The spelling of 1103003121 in words is "one billion, one hundred three million, three thousand, one hundred twenty-one".