43233203421013 has 4 divisors (see below), whose sum is σ = 43272758045548. Its totient is φ = 43193648796480.

The previous prime is 43233203421007. The next prime is 43233203421049. The reversal of 43233203421013 is 31012430233234.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32664345464529 + 10568857956484 = 5715273^2 + 3250978^2 .

It is a cyclic number.

It is not a de Polignac number, because 43233203421013 - 2¹³ = 43233203412821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43233203721013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19777310628 + ... + 19777312813.

It is an arithmetic number, because the mean of its divisors is an integer number (10818189511387).

Almost surely, 2^{43233203421013} is an apocalyptic number.

It is an amenable number.

43233203421013 is a deficient number, since it is larger than the sum of its proper divisors (39554624535).

43233203421013 is a wasteful number, since it uses less digits than its factorization.

43233203421013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39554624534.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 43233203421013 its reverse (31012430233234), we get a palindrome (74245633654247).

The spelling of 43233203421013 in words is "forty-three trillion, two hundred thirty-three billion, two hundred three million, four hundred twenty-one thousand, thirteen".