1103006321 has 2 divisors, whose sum is σ = 1103006322. Its totient is φ = 1103006320.

The previous prime is 1103006309. The next prime is 1103006347. The reversal of 1103006321 is 1236003011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978438400 + 124567921 = 31280^2 + 11161^2 .

It is an emirp because it is prime and its reverse (1236003011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103006321 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103006321.

It is not a weakly prime, because it can be changed into another prime (1103006921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551503160 + 551503161.

It is an arithmetic number, because the mean of its divisors is an integer number (551503161).

Almost surely, 2^1103006321 is an apocalyptic number.

It is an amenable number.

1103006321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103006321 is an equidigital number, since it uses as much as digits as its factorization.

1103006321 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 1103006321 is about 33211.5389736760. The cubic root of 1103006321 is about 1033.2196737861.

Adding to 1103006321 its reverse (1236003011), we get a palindrome (2339009332).

The spelling of 1103006321 in words is "one billion, one hundred three million, six thousand, three hundred twenty-one".