1121113103 has 16 divisors (see below), whose sum is σ = 1247961600. Its totient is φ = 998537280.

The previous prime is 1121113087. The next prime is 1121113111. The reversal of 1121113103 is 3013111211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121113103 - 2⁴ = 1121113087 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 (1121113193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200378 + ... + 205896.

It is an arithmetic number, because the mean of its divisors is an integer number (77997600).

Almost surely, 2^1121113103 is an apocalyptic number.

1121113103 is a deficient number, since it is larger than the sum of its proper divisors (126848497).

1121113103 is a wasteful number, since it uses less digits than its factorization.

1121113103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1121113103 is about 33483.0270883622. The cubic root of 1121113103 is about 1038.8427410303.

Adding to 1121113103 its reverse (3013111211), we get a palindrome (4134224314).

The spelling of 1121113103 in words is "one billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred three".