1121103203 has 4 divisors (see below), whose sum is σ = 1223021688. Its totient is φ = 1019184720.

The previous prime is 1121103197. The next prime is 1121103211. The reversal of 1121103203 is 3023011211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023011211 = 11 ⋅274819201.

It is a cyclic number.

It is not a de Polignac number, because 1121103203 - 2¹² = 1121099107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121103103) 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, 50959226 + ... + 50959247.

It is an arithmetic number, because the mean of its divisors is an integer number (305755422).

Almost surely, 2^1121103203 is an apocalyptic number.

1121103203 is a deficient number, since it is larger than the sum of its proper divisors (101918485).

1121103203 is a wasteful number, since it uses less digits than its factorization.

1121103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101918484.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1121103203 is about 33482.8792519401. The cubic root of 1121103203 is about 1038.8396831844.

Adding to 1121103203 its reverse (3023011211), we get a palindrome (4144114414).

The spelling of 1121103203 in words is "one billion, one hundred twenty-one million, one hundred three thousand, two hundred three".