12421124011 has 8 divisors (see below), whose sum is σ = 13201809920. Its totient is φ = 11653132392.

The previous prime is 12421123969. The next prime is 12421124021. The reversal of 12421124011 is 11042112421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12421124011 - 2⁹ = 12421123499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 12421124011.

It is not an unprimeable number, because it can be changed into a prime (12421124021) 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, 3171555 + ... + 3175468.

It is an arithmetic number, because the mean of its divisors is an integer number (1650226240).

Almost surely, 2^12421124011 is an apocalyptic number.

12421124011 is a deficient number, since it is larger than the sum of its proper divisors (780685909).

12421124011 is a wasteful number, since it uses less digits than its factorization.

12421124011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6347145.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12421124011 its reverse (11042112421), we get a palindrome (23463236432).

The spelling of 12421124011 in words is "twelve billion, four hundred twenty-one million, one hundred twenty-four thousand, eleven".