43421423012 has 48 divisors (see below), whose sum is σ = 83241829440. Its totient is φ = 19654723200.

The previous prime is 43421423009. The next prime is 43421423033. The reversal of 43421423012 is 21032412434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12205538 + ... + 12209094.

It is an arithmetic number, because the mean of its divisors is an integer number (1734204780).

Almost surely, 2^43421423012 is an apocalyptic number.

It is an amenable number.

43421423012 is a deficient number, since it is larger than the sum of its proper divisors (39820406428).

43421423012 is a wasteful number, since it uses less digits than its factorization.

43421423012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43421423012 its reverse (21032412434), we get a palindrome (64453835446).

The spelling of 43421423012 in words is "forty-three billion, four hundred twenty-one million, four hundred twenty-three thousand, twelve".