17231220203 has 8 divisors (see below), whose sum is σ = 18400414080. Its totient is φ = 16100360640.

The previous prime is 17231220163. The next prime is 17231220221. The reversal of 17231220203 is 30202213271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17231220203 - 2¹⁶ = 17231154667 is a prime.

It is a super-2 number, since 2×17231220203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17231220233) 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 in 7 ways as a sum of consecutive naturals, for example, 9582650 + ... + 9584447.

It is an arithmetic number, because the mean of its divisors is an integer number (2300051760).

Almost surely, 2^17231220203 is an apocalyptic number.

17231220203 is a deficient number, since it is larger than the sum of its proper divisors (1169193877).

17231220203 is a wasteful number, since it uses less digits than its factorization.

17231220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19167157.

The product of its (nonzero) digits is 1008, while the sum is 23.

Adding to 17231220203 its reverse (30202213271), we get a palindrome (47433433474).

The spelling of 17231220203 in words is "seventeen billion, two hundred thirty-one million, two hundred twenty thousand, two hundred three".