1101128803 has 2 divisors, whose sum is σ = 1101128804. Its totient is φ = 1101128802.

The previous prime is 1101128789. The next prime is 1101128807. The reversal of 1101128803 is 3088211011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101128803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101128807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550564401 + 550564402.

It is an arithmetic number, because the mean of its divisors is an integer number (550564402).

Almost surely, 2^1101128803 is an apocalyptic number.

1101128803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101128803 is an equidigital number, since it uses as much as digits as its factorization.

1101128803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1101128803 is about 33183.2608855730. The cubic root of 1101128803 is about 1032.6330980425.

Adding to 1101128803 its reverse (3088211011), we get a palindrome (4189339814).

The spelling of 1101128803 in words is "one billion, one hundred one million, one hundred twenty-eight thousand, eight hundred three".