124043004243 has 6 divisors (see below), whose sum is σ = 179173228364. Its totient is φ = 82695336156.

The previous prime is 124043004233. The next prime is 124043004251. The reversal of 124043004243 is 342400340421.

It is a happy number.

124043004243 is a `hidden beast` number, since 12 + 404 + 3 + 0 + 0 + 4 + 243 = 666.

It is not a de Polignac number, because 124043004243 - 2⁴ = 124043004227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124043004203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6891278005 + ... + 6891278022.

Almost surely, 2^124043004243 is an apocalyptic number.

124043004243 is a deficient number, since it is larger than the sum of its proper divisors (55130224121).

124043004243 is a wasteful number, since it uses less digits than its factorization.

124043004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782556033 (or 13782556030 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 124043004243 its reverse (342400340421), we get a palindrome (466443344664).

The spelling of 124043004243 in words is "one hundred twenty-four billion, forty-three million, four thousand, two hundred forty-three".