43012421421013 has 16 divisors (see below), whose sum is σ = 48068344864512. Its totient is φ = 38147498080000.

The previous prime is 43012421420987. The next prime is 43012421421049. The reversal of 43012421421013 is 31012412421034.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43012421421013 - 2²⁹ = 43011884550101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43012421421083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16420788 + ... + 18859138.

It is an arithmetic number, because the mean of its divisors is an integer number (3004271554032).

Almost surely, 2^{43012421421013} is an apocalyptic number.

It is an amenable number.

43012421421013 is a deficient number, since it is larger than the sum of its proper divisors (5055923443499).

43012421421013 is a wasteful number, since it uses less digits than its factorization.

43012421421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477516.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 43012421421013 its reverse (31012412421034), we get a palindrome (74024833842047).

It can be divided in two parts, 43012421 and 421013, that added together give a palindrome (43433434).

The spelling of 43012421421013 in words is "forty-three trillion, twelve billion, four hundred twenty-one million, four hundred twenty-one thousand, thirteen".