1105551203 has 2 divisors, whose sum is σ = 1105551204. Its totient is φ = 1105551202.

The previous prime is 1105551173. The next prime is 1105551217. The reversal of 1105551203 is 3021555011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1105551203 - 2⁸ = 1105550947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1105551283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552775601 + 552775602.

It is an arithmetic number, because the mean of its divisors is an integer number (552775602).

Almost surely, 2^1105551203 is an apocalyptic number.

1105551203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105551203 is an equidigital number, since it uses as much as digits as its factorization.

1105551203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1105551203 is about 33249.8301198668. The cubic root of 1105551203 is about 1034.0136863155.

The spelling of 1105551203 in words is "one billion, one hundred five million, five hundred fifty-one thousand, two hundred three".