43032215081 has 2 divisors, whose sum is σ = 43032215082. Its totient is φ = 43032215080.

The previous prime is 43032215077. The next prime is 43032215147. The reversal of 43032215081 is 18051223034.

It is a happy number.

43032215081 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., 39124840000 + 3907375081 = 197800^2 + 62509^2 .

It is a cyclic number.

It is not a de Polignac number, because 43032215081 - 2² = 43032215077 is a prime.

It is a super-2 number, since 2×43032215081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43032215381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21516107540 + 21516107541.

It is an arithmetic number, because the mean of its divisors is an integer number (21516107541).

Almost surely, 2^43032215081 is an apocalyptic number.

It is an amenable number.

43032215081 is a deficient number, since it is larger than the sum of its proper divisors (1).

43032215081 is an equidigital number, since it uses as much as digits as its factorization.

43032215081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 43032215081 in words is "forty-three billion, thirty-two million, two hundred fifteen thousand, eighty-one".