491060203 has 2 divisors, whose sum is σ = 491060204. Its totient is φ = 491060202.

The previous prime is 491060179. The next prime is 491060231. The reversal of 491060203 is 302060194.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 491060203 - 2⁹ = 491059691 is a prime.

It is a super-2 number, since 2×491060203² = 482280245940802418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (491060503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245530101 + 245530102.

It is an arithmetic number, because the mean of its divisors is an integer number (245530102).

Almost surely, 2^491060203 is an apocalyptic number.

491060203 is a deficient number, since it is larger than the sum of its proper divisors (1).

491060203 is an equidigital number, since it uses as much as digits as its factorization.

491060203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 491060203 is about 22159.8782261997. The cubic root of 491060203 is about 788.9417026123.

The spelling of 491060203 in words is "four hundred ninety-one million, sixty thousand, two hundred three".