12443213001 has 4 divisors (see below), whose sum is σ = 16590950672. Its totient is φ = 8295475332.

The previous prime is 12443212987. The next prime is 12443213009. The reversal of 12443213001 is 10031234421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12443213001 - 2⁹ = 12443212489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12443213009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2073868831 + ... + 2073868836.

It is an arithmetic number, because the mean of its divisors is an integer number (4147737668).

Almost surely, 2^12443213001 is an apocalyptic number.

It is an amenable number.

12443213001 is a deficient number, since it is larger than the sum of its proper divisors (4147737671).

12443213001 is an equidigital number, since it uses as much as digits as its factorization.

12443213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147737670.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12443213001 its reverse (10031234421), we get a palindrome (22474447422).

The spelling of 12443213001 in words is "twelve billion, four hundred forty-three million, two hundred thirteen thousand, one".