1111021203103 has 8 divisors (see below), whose sum is σ = 1272283088000. Its totient is φ = 950395460760.

The previous prime is 1111021203053. The next prime is 1111021203221. The reversal of 1111021203103 is 3013021201111.

It is a happy number.

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 1111021203103 - 2⁹ = 1111021202591 is a prime.

It is a super-2 number, since 2×1111021203103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111021200103) 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, 159031893 + ... + 159038878.

It is an arithmetic number, because the mean of its divisors is an integer number (159035386000).

Almost surely, 2^{1111021203103} is an apocalyptic number.

1111021203103 is a deficient number, since it is larger than the sum of its proper divisors (161261884897).

1111021203103 is an equidigital number, since it uses as much as digits as its factorization.

1111021203103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318071277.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1111021203103 its reverse (3013021201111), we get a palindrome (4124042404214).

The spelling of 1111021203103 in words is "one trillion, one hundred eleven billion, twenty-one million, two hundred three thousand, one hundred three".