123342001243 has 2 divisors, whose sum is σ = 123342001244. Its totient is φ = 123342001242.

The previous prime is 123342001207. The next prime is 123342001267. The reversal of 123342001243 is 342100243321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123342001243 - 2¹³ = 123341993051 is a prime.

It is not a weakly prime, because it can be changed into another prime (123342001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61671000621 + 61671000622.

It is an arithmetic number, because the mean of its divisors is an integer number (61671000622).

Almost surely, 2^123342001243 is an apocalyptic number.

123342001243 is a deficient number, since it is larger than the sum of its proper divisors (1).

123342001243 is an equidigital number, since it uses as much as digits as its factorization.

123342001243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123342001243 its reverse (342100243321), we get a palindrome (465442244564).

The spelling of 123342001243 in words is "one hundred twenty-three billion, three hundred forty-two million, one thousand, two hundred forty-three".