1103243111 has 2 divisors, whose sum is σ = 1103243112. Its totient is φ = 1103243110.

The previous prime is 1103243083. The next prime is 1103243123. The reversal of 1103243111 is 1113423011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103243111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103243111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103243161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551621555 + 551621556.

It is an arithmetic number, because the mean of its divisors is an integer number (551621556).

Almost surely, 2^1103243111 is an apocalyptic number.

1103243111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103243111 is an equidigital number, since it uses as much as digits as its factorization.

1103243111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1103243111 is about 33215.1036578241. The cubic root of 1103243111 is about 1033.2936046351.

Adding to 1103243111 its reverse (1113423011), we get a palindrome (2216666122).

The spelling of 1103243111 in words is "one billion, one hundred three million, two hundred forty-three thousand, one hundred eleven".