201254516503 has 2 divisors, whose sum is σ = 201254516504. Its totient is φ = 201254516502.

The previous prime is 201254516479. The next prime is 201254516521. The reversal of 201254516503 is 305615452102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201254516503 - 2²⁵ = 201220962071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201264516503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100627258251 + 100627258252.

It is an arithmetic number, because the mean of its divisors is an integer number (100627258252).

Almost surely, 2^201254516503 is an apocalyptic number.

201254516503 is a deficient number, since it is larger than the sum of its proper divisors (1).

201254516503 is an equidigital number, since it uses as much as digits as its factorization.

201254516503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 201254516503 its reverse (305615452102), we get a palindrome (506869968605).

The spelling of 201254516503 in words is "two hundred one billion, two hundred fifty-four million, five hundred sixteen thousand, five hundred three".