12001443445 has 4 divisors (see below), whose sum is σ = 14401732140. Its totient is φ = 9601154752.

The previous prime is 12001443379. The next prime is 12001443457. The reversal of 12001443445 is 54434410021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6375543409 + 5625900036 = 79847^2 + 75006^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001443445 - 2¹⁵ = 12001410677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200144340 + ... + 1200144349.

It is an arithmetic number, because the mean of its divisors is an integer number (3600433035).

Almost surely, 2^12001443445 is an apocalyptic number.

It is an amenable number.

12001443445 is a deficient number, since it is larger than the sum of its proper divisors (2400288695).

12001443445 is an equidigital number, since it uses as much as digits as its factorization.

12001443445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400288694.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 12001443445 its reverse (54434410021), we get a palindrome (66435853466).

The spelling of 12001443445 in words is "twelve billion, one million, four hundred forty-three thousand, four hundred forty-five".