1103312143 has 2 divisors, whose sum is σ = 1103312144. Its totient is φ = 1103312142.

The previous prime is 1103312131. The next prime is 1103312209. The reversal of 1103312143 is 3412133011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103312143 - 2²¹ = 1101214991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103312143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103312113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551656071 + 551656072.

It is an arithmetic number, because the mean of its divisors is an integer number (551656072).

Almost surely, 2^1103312143 is an apocalyptic number.

1103312143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103312143 is an equidigital number, since it uses as much as digits as its factorization.

1103312143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1103312143 is about 33216.1428073761. The cubic root of 1103312143 is about 1033.3151558948.

Adding to 1103312143 its reverse (3412133011), we get a palindrome (4515445154).

The spelling of 1103312143 in words is "one billion, one hundred three million, three hundred twelve thousand, one hundred forty-three".