243329002316123 has 2 divisors, whose sum is σ = 243329002316124. Its totient is φ = 243329002316122.

The previous prime is 243329002316119. The next prime is 243329002316167. The reversal of 243329002316123 is 321613200923342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243329002316123 - 2² = 243329002316119 is a prime.

It is a super-2 number, since 2×243329002316123² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243329002516123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121664501158061 + 121664501158062.

It is an arithmetic number, because the mean of its divisors is an integer number (121664501158062).

Almost surely, 2^{243329002316123} is an apocalyptic number.

243329002316123 is a deficient number, since it is larger than the sum of its proper divisors (1).

243329002316123 is an equidigital number, since it uses as much as digits as its factorization.

243329002316123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 243329002316123 in words is "two hundred forty-three trillion, three hundred twenty-nine billion, two million, three hundred sixteen thousand, one hundred twenty-three".