1111663103 has 4 divisors (see below), whose sum is σ = 1112159208. Its totient is φ = 1111167000.

The previous prime is 1111663093. The next prime is 1111663109. The reversal of 1111663103 is 3013661111.

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 1111663103 - 2⁴ = 1111663087 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 (1111663109) 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, 244676 + ... + 249177.

It is an arithmetic number, because the mean of its divisors is an integer number (278039802).

Almost surely, 2^1111663103 is an apocalyptic number.

1111663103 is a deficient number, since it is larger than the sum of its proper divisors (496105).

1111663103 is an equidigital number, since it uses as much as digits as its factorization.

1111663103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496104.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1111663103 is about 33341.6121835762. The cubic root of 1111663103 is about 1035.9156569704.

The spelling of 1111663103 in words is "one billion, one hundred eleven million, six hundred sixty-three thousand, one hundred three".