43004221043213 has 2 divisors, whose sum is σ = 43004221043214. Its totient is φ = 43004221043212.

The previous prime is 43004221043183. The next prime is 43004221043221. The reversal of 43004221043213 is 31234012240034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42985305717124 + 18915326089 = 6556318^2 + 137533^2 .

It is a cyclic number.

It is not a de Polignac number, because 43004221043213 - 2⁶ = 43004221043149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43004221042213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21502110521606 + 21502110521607.

It is an arithmetic number, because the mean of its divisors is an integer number (21502110521607).

Almost surely, 2^{43004221043213} is an apocalyptic number.

It is an amenable number.

43004221043213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43004221043213 is an equidigital number, since it uses as much as digits as its factorization.

43004221043213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 43004221043213 its reverse (31234012240034), we get a palindrome (74238233283247).

The spelling of 43004221043213 in words is "forty-three trillion, four billion, two hundred twenty-one million, forty-three thousand, two hundred thirteen".