17145000203 has 2 divisors, whose sum is σ = 17145000204. Its totient is φ = 17145000202.

The previous prime is 17145000143. The next prime is 17145000221. The reversal of 17145000203 is 30200054171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17145000203 - 2¹² = 17144996107 is a prime.

It is not a weakly prime, because it can be changed into another prime (17145000253) 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, 8572500101 + 8572500102.

It is an arithmetic number, because the mean of its divisors is an integer number (8572500102).

Almost surely, 2^17145000203 is an apocalyptic number.

17145000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

17145000203 is an equidigital number, since it uses as much as digits as its factorization.

17145000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 17145000203 its reverse (30200054171), we get a palindrome (47345054374).

The spelling of 17145000203 in words is "seventeen billion, one hundred forty-five million, two hundred three", and thus it is an aban number.