13012423443 has 40 divisors (see below), whose sum is σ = 20306289696. Its totient is φ = 8288438400.

The previous prime is 13012423433. The next prime is 13012423481. The reversal of 13012423443 is 34432421031.

13012423443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13012423443 - 2⁴ = 13012423427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13012423433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1898703 + ... + 1905543.

Almost surely, 2^13012423443 is an apocalyptic number.

13012423443 is a deficient number, since it is larger than the sum of its proper divisors (7293866253).

13012423443 is a wasteful number, since it uses less digits than its factorization.

13012423443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897 (or 7888 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13012423443 its reverse (34432421031), we get a palindrome (47444844474).

The spelling of 13012423443 in words is "thirteen billion, twelve million, four hundred twenty-three thousand, four hundred forty-three".