124321666881 has 8 divisors (see below), whose sum is σ = 171109391104. Its totient is φ = 80207526960.

The previous prime is 124321666879. The next prime is 124321666921. The reversal of 124321666881 is 188666123421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 124321666881 - 2¹ = 124321666879 is a prime.

It is a super-2 number, since 2×124321666881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124321666881.

It is not an unprimeable number, because it can be changed into a prime (124321666801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668395966 + ... + 668396151.

It is an arithmetic number, because the mean of its divisors is an integer number (21388673888).

Almost surely, 2^124321666881 is an apocalyptic number.

It is an amenable number.

124321666881 is a deficient number, since it is larger than the sum of its proper divisors (46787724223).

124321666881 is a wasteful number, since it uses less digits than its factorization.

124321666881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336792151.

The product of its digits is 663552, while the sum is 48.

The spelling of 124321666881 in words is "one hundred twenty-four billion, three hundred twenty-one million, six hundred sixty-six thousand, eight hundred eighty-one".