243363403 has 2 divisors, whose sum is σ = 243363404. Its totient is φ = 243363402.

The previous prime is 243363349. The next prime is 243363427. The reversal of 243363403 is 304363342.

243363403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243363403 is a prime.

It is not a weakly prime, because it can be changed into another prime (243363433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121681701 + 121681702.

It is an arithmetic number, because the mean of its divisors is an integer number (121681702).

Almost surely, 2^243363403 is an apocalyptic number.

243363403 is a deficient number, since it is larger than the sum of its proper divisors (1).

243363403 is an equidigital number, since it uses as much as digits as its factorization.

243363403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 28.

The square root of 243363403 is about 15600.1090701315. The cubic root of 243363403 is about 624.3360655153.

The spelling of 243363403 in words is "two hundred forty-three million, three hundred sixty-three thousand, four hundred three".