243201014123 has 2 divisors, whose sum is σ = 243201014124. Its totient is φ = 243201014122.

The previous prime is 243201014083. The next prime is 243201014129. The reversal of 243201014123 is 321410102342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243201014123 is a prime.

It is not a weakly prime, because it can be changed into another prime (243201014129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121600507061 + 121600507062.

It is an arithmetic number, because the mean of its divisors is an integer number (121600507062).

Almost surely, 2^243201014123 is an apocalyptic number.

243201014123 is a deficient number, since it is larger than the sum of its proper divisors (1).

243201014123 is an equidigital number, since it uses as much as digits as its factorization.

243201014123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 243201014123 its reverse (321410102342), we get a palindrome (564611116465).

The spelling of 243201014123 in words is "two hundred forty-three billion, two hundred one million, fourteen thousand, one hundred twenty-three".