1103431103 has 2 divisors, whose sum is σ = 1103431104. Its totient is φ = 1103431102.

The previous prime is 1103431037. The next prime is 1103431117. The reversal of 1103431103 is 3011343011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1103431103 - 2⁸ = 1103430847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103431123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551715551 + 551715552.

It is an arithmetic number, because the mean of its divisors is an integer number (551715552).

Almost surely, 2^1103431103 is an apocalyptic number.

1103431103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103431103 is an equidigital number, since it uses as much as digits as its factorization.

1103431103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1103431103 is about 33217.9334546868. The cubic root of 1103431103 is about 1033.3522921831.

Adding to 1103431103 its reverse (3011343011), we get a palindrome (4114774114).

The spelling of 1103431103 in words is "one billion, one hundred three million, four hundred thirty-one thousand, one hundred three".