12443402440101 has 4 divisors (see below), whose sum is σ = 16591203253472. Its totient is φ = 8295601626732.

The previous prime is 12443402440099. The next prime is 12443402440121. The reversal of 12443402440101 is 10104420434421.

It is a happy number.

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 12443402440101 - 2¹ = 12443402440099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443402440121) 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, 2073900406681 + ... + 2073900406686.

It is an arithmetic number, because the mean of its divisors is an integer number (4147800813368).

Almost surely, 2^{12443402440101} is an apocalyptic number.

It is an amenable number.

12443402440101 is a deficient number, since it is larger than the sum of its proper divisors (4147800813371).

12443402440101 is an equidigital number, since it uses as much as digits as its factorization.

12443402440101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147800813370.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 12443402440101 its reverse (10104420434421), we get a palindrome (22547822874522).

The spelling of 12443402440101 in words is "twelve trillion, four hundred forty-three billion, four hundred two million, four hundred forty thousand, one hundred one".