1121032103 has 4 divisors (see below), whose sum is σ = 1122655128. Its totient is φ = 1119409080.

The previous prime is 1121032093. The next prime is 1121032111. The reversal of 1121032103 is 3012301211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121032103 - 2²⁶ = 1053923239 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 (1121032153) 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, 810476 + ... + 811857.

It is an arithmetic number, because the mean of its divisors is an integer number (280663782).

Almost surely, 2^1121032103 is an apocalyptic number.

1121032103 is a deficient number, since it is larger than the sum of its proper divisors (1623025).

1121032103 is an equidigital number, since it uses as much as digits as its factorization.

1121032103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623024.

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

The square root of 1121032103 is about 33481.8174984573. The cubic root of 1121032103 is about 1038.8177217620.

Adding to 1121032103 its reverse (3012301211), we get a palindrome (4133333314).

The spelling of 1121032103 in words is "one billion, one hundred twenty-one million, thirty-two thousand, one hundred three".