243302811623 has 2 divisors, whose sum is σ = 243302811624. Its totient is φ = 243302811622.

The previous prime is 243302811593. The next prime is 243302811643. The reversal of 243302811623 is 326118203342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243302811623 - 2⁶ = 243302811559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243302811643) 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, 121651405811 + 121651405812.

It is an arithmetic number, because the mean of its divisors is an integer number (121651405812).

Almost surely, 2^243302811623 is an apocalyptic number.

243302811623 is a deficient number, since it is larger than the sum of its proper divisors (1).

243302811623 is an equidigital number, since it uses as much as digits as its factorization.

243302811623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 243302811623 in words is "two hundred forty-three billion, three hundred two million, eight hundred eleven thousand, six hundred twenty-three".