124378873421 has 8 divisors (see below), whose sum is σ = 136662204000. Its totient is φ = 112258236240.

The previous prime is 124378873397. The next prime is 124378873427.

124378873421 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124378873421 is a prime.

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 124378873421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124378873427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40671746 + ... + 40674803.

It is an arithmetic number, because the mean of its divisors is an integer number (17082775500).

Almost surely, 2^124378873421 is an apocalyptic number.

124378873421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124378873421 is a deficient number, since it is larger than the sum of its proper divisors (12283330579).

124378873421 is a wasteful number, since it uses less digits than its factorization.

124378873421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81346699.

The product of its digits is 1806336, while the sum is 50.

It can be divided in two parts, 124378 and 873421, that added together give a palindrome (997799).

The spelling of 124378873421 in words is "one hundred twenty-four billion, three hundred seventy-eight million, eight hundred seventy-three thousand, four hundred twenty-one".