1103444021 has 8 divisors (see below), whose sum is σ = 1152169920. Its totient is φ = 1054780672.

The previous prime is 1103444011. The next prime is 1103444033. The reversal of 1103444021 is 1204443011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103444021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103443984 and 1103444002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103444011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22421 + ... + 52053.

It is an arithmetic number, because the mean of its divisors is an integer number (144021240).

Almost surely, 2^1103444021 is an apocalyptic number.

It is an amenable number.

1103444021 is a deficient number, since it is larger than the sum of its proper divisors (48725899).

1103444021 is a wasteful number, since it uses less digits than its factorization.

1103444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31275.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1103444021 is about 33218.1278972792. The cubic root of 1103444021 is about 1033.3563246937.

Adding to 1103444021 its reverse (1204443011), we get a palindrome (2307887032).

It can be divided in two parts, 11034 and 44021, that added together give a palindrome (55055).

The spelling of 1103444021 in words is "one billion, one hundred three million, four hundred forty-four thousand, twenty-one".