168100203 has 4 divisors (see below), whose sum is σ = 224133608. Its totient is φ = 112066800.

The previous prime is 168100159. The next prime is 168100217. The reversal of 168100203 is 302001861.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 168100203 - 2¹² = 168096107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168100203.

It is not an unprimeable number, because it can be changed into a prime (168100243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28016698 + ... + 28016703.

It is an arithmetic number, because the mean of its divisors is an integer number (56033402).

Almost surely, 2^168100203 is an apocalyptic number.

168100203 is a deficient number, since it is larger than the sum of its proper divisors (56033405).

168100203 is an equidigital number, since it uses as much as digits as its factorization.

168100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56033404.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 168100203 is about 12965.3462352534. The cubic root of 168100203 is about 551.8945168375.

The spelling of 168100203 in words is "one hundred sixty-eight million, one hundred thousand, two hundred three".