12443052405 has 48 divisors (see below), whose sum is σ = 24378252480. Its totient is φ = 5388864768.

The previous prime is 12443052341. The next prime is 12443052407. The reversal of 12443052405 is 50425034421.

It is not a de Polignac number, because 12443052405 - 2⁶ = 12443052341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443052407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431544 + ... + 459473.

It is an arithmetic number, because the mean of its divisors is an integer number (507880260).

Almost surely, 2^12443052405 is an apocalyptic number.

12443052405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12443052405 is a deficient number, since it is larger than the sum of its proper divisors (11935200075).

12443052405 is a wasteful number, since it uses less digits than its factorization.

12443052405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891058 (or 891051 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12443052405 its reverse (50425034421), we get a palindrome (62868086826).

The spelling of 12443052405 in words is "twelve billion, four hundred forty-three million, fifty-two thousand, four hundred five".