203454320219 has 2 divisors, whose sum is σ = 203454320220. Its totient is φ = 203454320218.

The previous prime is 203454320191. The next prime is 203454320239. The reversal of 203454320219 is 912023454302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203454320219 - 2⁸ = 203454319963 is a prime.

It is a super-2 number, since 2×203454320219² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203454320239) 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, 101727160109 + 101727160110.

It is an arithmetic number, because the mean of its divisors is an integer number (101727160110).

Almost surely, 2^203454320219 is an apocalyptic number.

203454320219 is a deficient number, since it is larger than the sum of its proper divisors (1).

203454320219 is an equidigital number, since it uses as much as digits as its factorization.

203454320219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 203454320219 in words is "two hundred three billion, four hundred fifty-four million, three hundred twenty thousand, two hundred nineteen".