12443401020 has 24 divisors (see below), whose sum is σ = 34841523024. Its totient is φ = 3318240256.

The previous prime is 12443401007. The next prime is 12443401049. The reversal of 12443401020 is 2010434421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103694949 + ... + 103695068.

It is an arithmetic number, because the mean of its divisors is an integer number (1451730126).

Almost surely, 2^12443401020 is an apocalyptic number.

12443401020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443401020 is an abundant number, since it is smaller than the sum of its proper divisors (22398122004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12443401020 is a wasteful number, since it uses less digits than its factorization.

12443401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207390029 (or 207390027 counting only the distinct ones).

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

Adding to 12443401020 its reverse (2010434421), we get a palindrome (14453835441).

The spelling of 12443401020 in words is "twelve billion, four hundred forty-three million, four hundred one thousand, twenty".