503091103 has 2 divisors, whose sum is σ = 503091104. Its totient is φ = 503091102.

The previous prime is 503091077. The next prime is 503091131. The reversal of 503091103 is 301190305.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503091103 - 2²⁵ = 469536671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503091133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251545551 + 251545552.

It is an arithmetic number, because the mean of its divisors is an integer number (251545552).

Almost surely, 2^503091103 is an apocalyptic number.

503091103 is a deficient number, since it is larger than the sum of its proper divisors (1).

503091103 is an equidigital number, since it uses as much as digits as its factorization.

503091103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 503091103 is about 22429.6924410479. The cubic root of 503091103 is about 795.3327736784.

The spelling of 503091103 in words is "five hundred three million, ninety-one thousand, one hundred three".