123243351443413 has 2 divisors, whose sum is σ = 123243351443414. Its totient is φ = 123243351443412.

The previous prime is 123243351443411. The next prime is 123243351443449. The reversal of 123243351443413 is 314344153342321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65552065394929 + 57691286048484 = 8096423^2 + 7595478^2 .

It is a cyclic number.

It is not a de Polignac number, because 123243351443413 - 2¹ = 123243351443411 is a prime.

Together with 123243351443411, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123243351443413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123243351443411) 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, 61621675721706 + 61621675721707.

It is an arithmetic number, because the mean of its divisors is an integer number (61621675721707).

Almost surely, 2^{123243351443413} is an apocalyptic number.

It is an amenable number.

123243351443413 is a deficient number, since it is larger than the sum of its proper divisors (1).

123243351443413 is an equidigital number, since it uses as much as digits as its factorization.

123243351443413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 43.

The spelling of 123243351443413 in words is "one hundred twenty-three trillion, two hundred forty-three billion, three hundred fifty-one million, four hundred forty-three thousand, four hundred thirteen".