43065211213 has 2 divisors, whose sum is σ = 43065211214. Its totient is φ = 43065211212.

The previous prime is 43065211193. The next prime is 43065211237. The reversal of 43065211213 is 31211256034.

43065211213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32718659689 + 10346551524 = 180883^2 + 101718^2 .

It is a cyclic number.

It is not a de Polignac number, because 43065211213 - 2⁵ = 43065211181 is a prime.

It is a super-2 number, since 2×43065211213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43065211243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21532605606 + 21532605607.

It is an arithmetic number, because the mean of its divisors is an integer number (21532605607).

Almost surely, 2^43065211213 is an apocalyptic number.

It is an amenable number.

43065211213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43065211213 is an equidigital number, since it uses as much as digits as its factorization.

43065211213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 43065211213 its reverse (31211256034), we get a palindrome (74276467247).

The spelling of 43065211213 in words is "forty-three billion, sixty-five million, two hundred eleven thousand, two hundred thirteen".