1268544203 has 2 divisors, whose sum is σ = 1268544204. Its totient is φ = 1268544202.

The previous prime is 1268544157. The next prime is 1268544217. The reversal of 1268544203 is 3024458621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1268544203 - 2²⁰ = 1267495627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1268544283) 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, 634272101 + 634272102.

It is an arithmetic number, because the mean of its divisors is an integer number (634272102).

Almost surely, 2^1268544203 is an apocalyptic number.

1268544203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268544203 is an equidigital number, since it uses as much as digits as its factorization.

1268544203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1268544203 is about 35616.6281812302. The cubic root of 1268544203 is about 1082.5181873925.

The spelling of 1268544203 in words is "one billion, two hundred sixty-eight million, five hundred forty-four thousand, two hundred three".