124016636443 has 4 divisors (see below), whose sum is σ = 141733298800. Its totient is φ = 106299974088.

The previous prime is 124016636441. The next prime is 124016636459. The reversal of 124016636443 is 344636610421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344636610421 = 29 ⋅11884021049.

It is not a de Polignac number, because 124016636443 - 2¹ = 124016636441 is a prime.

It is a super-2 number, since 2×124016636443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124016636396 and 124016636405.

It is not an unprimeable number, because it can be changed into a prime (124016636441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8858331168 + ... + 8858331181.

It is an arithmetic number, because the mean of its divisors is an integer number (35433324700).

Almost surely, 2^124016636443 is an apocalyptic number.

124016636443 is a deficient number, since it is larger than the sum of its proper divisors (17716662357).

124016636443 is an equidigital number, since it uses as much as digits as its factorization.

124016636443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17716662356.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 124016636443 in words is "one hundred twenty-four billion, sixteen million, six hundred thirty-six thousand, four hundred forty-three".