43215422013 has 24 divisors (see below), whose sum is σ = 63622361088. Its totient is φ = 28256777952.

The previous prime is 43215422009. The next prime is 43215422017. The reversal of 43215422013 is 31022451234.

43215422013 is a `hidden beast` number, since 432 + 1 + 5 + 4 + 220 + 1 + 3 = 666.

43215422013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43215422009) and next prime (43215422017).

It is not a de Polignac number, because 43215422013 - 2² = 43215422009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43215422017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1496356 + ... + 1524962.

It is an arithmetic number, because the mean of its divisors is an integer number (2650931712).

Almost surely, 2^43215422013 is an apocalyptic number.

It is an amenable number.

43215422013 is a deficient number, since it is larger than the sum of its proper divisors (20406939075).

43215422013 is a wasteful number, since it uses less digits than its factorization.

43215422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31833 (or 31830 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 43215422013 its reverse (31022451234), we get a palindrome (74237873247).

The spelling of 43215422013 in words is "forty-three billion, two hundred fifteen million, four hundred twenty-two thousand, thirteen".