1103111203 has 2 divisors, whose sum is σ = 1103111204. Its totient is φ = 1103111202.

The previous prime is 1103111189. The next prime is 1103111209. The reversal of 1103111203 is 3021113011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1103111203 - 2²¹ = 1101014051 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103111209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551555601 + 551555602.

It is an arithmetic number, because the mean of its divisors is an integer number (551555602).

Almost surely, 2^1103111203 is an apocalyptic number.

1103111203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103111203 is an equidigital number, since it uses as much as digits as its factorization.

1103111203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1103111203 is about 33213.1179355387. The cubic root of 1103111203 is about 1033.2524214713.

Adding to 1103111203 its reverse (3021113011), we get a palindrome (4124224214).

The spelling of 1103111203 in words is "one billion, one hundred three million, one hundred eleven thousand, two hundred three".