12100020443 has 16 divisors (see below), whose sum is σ = 13890455040. Its totient is φ = 10325145600.

The previous prime is 12100020391. The next prime is 12100020479. The reversal of 12100020443 is 34402000121.

It is not a de Polignac number, because 12100020443 - 2¹⁰ = 12100019419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12100020143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1778378 + ... + 1785168.

It is an arithmetic number, because the mean of its divisors is an integer number (868153440).

Almost surely, 2^12100020443 is an apocalyptic number.

12100020443 is a deficient number, since it is larger than the sum of its proper divisors (1790434597).

12100020443 is an equidigital number, since it uses as much as digits as its factorization.

12100020443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12100020443 its reverse (34402000121), we get a palindrome (46502020564).

The spelling of 12100020443 in words is "twelve billion, one hundred million, twenty thousand, four hundred forty-three".