203440410163 has 2 divisors, whose sum is σ = 203440410164. Its totient is φ = 203440410162.

The previous prime is 203440410149. The next prime is 203440410197. The reversal of 203440410163 is 361014044302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203440410163 - 2³⁷ = 66001456691 is a prime.

It is not a weakly prime, because it can be changed into another prime (203440710163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101720205081 + 101720205082.

It is an arithmetic number, because the mean of its divisors is an integer number (101720205082).

Almost surely, 2^203440410163 is an apocalyptic number.

203440410163 is a deficient number, since it is larger than the sum of its proper divisors (1).

203440410163 is an equidigital number, since it uses as much as digits as its factorization.

203440410163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 203440410163 its reverse (361014044302), we get a palindrome (564454454465).

The spelling of 203440410163 in words is "two hundred three billion, four hundred forty million, four hundred ten thousand, one hundred sixty-three".