12121241443 has 8 divisors (see below), whose sum is σ = 12166291728. Its totient is φ = 12076232064.

The previous prime is 12121241441. The next prime is 12121241449. The reversal of 12121241443 is 34414212121.

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 12121241443 - 2¹ = 12121241441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121241441) 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, 664896 + ... + 682882.

It is an arithmetic number, because the mean of its divisors is an integer number (1520786466).

Almost surely, 2^12121241443 is an apocalyptic number.

12121241443 is a deficient number, since it is larger than the sum of its proper divisors (45050285).

12121241443 is a wasteful number, since it uses less digits than its factorization.

12121241443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20453.

The product of its digits is 1536, while the sum is 25.

Adding to 12121241443 its reverse (34414212121), we get a palindrome (46535453564).

The spelling of 12121241443 in words is "twelve billion, one hundred twenty-one million, two hundred forty-one thousand, four hundred forty-three".