12010420443 has 16 divisors (see below), whose sum is σ = 18413878016. Its totient is φ = 6820990560.

The previous prime is 12010420417. The next prime is 12010420451. The reversal of 12010420443 is 34402401021.

It is not a de Polignac number, because 12010420443 - 2¹⁸ = 12010158299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010420453) 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, 1750948 + ... + 1757793.

It is an arithmetic number, because the mean of its divisors is an integer number (1150867376).

Almost surely, 2^12010420443 is an apocalyptic number.

12010420443 is a deficient number, since it is larger than the sum of its proper divisors (6403457573).

12010420443 is a wasteful number, since it uses less digits than its factorization.

12010420443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508914.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12010420443 its reverse (34402401021), we get a palindrome (46412821464).

The spelling of 12010420443 in words is "twelve billion, ten million, four hundred twenty thousand, four hundred forty-three".