124343012243 has 2 divisors, whose sum is σ = 124343012244. Its totient is φ = 124343012242.

The previous prime is 124343012239. The next prime is 124343012249. The reversal of 124343012243 is 342210343421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124343012243 - 2² = 124343012239 is a prime.

It is a super-2 number, since 2×124343012243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124343012249) 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, 62171506121 + 62171506122.

It is an arithmetic number, because the mean of its divisors is an integer number (62171506122).

Almost surely, 2^124343012243 is an apocalyptic number.

124343012243 is a deficient number, since it is larger than the sum of its proper divisors (1).

124343012243 is an equidigital number, since it uses as much as digits as its factorization.

124343012243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 124343012243 its reverse (342210343421), we get a palindrome (466553355664).

The spelling of 124343012243 in words is "one hundred twenty-four billion, three hundred forty-three million, twelve thousand, two hundred forty-three".