43030427221 has 2 divisors, whose sum is σ = 43030427222. Its totient is φ = 43030427220.

The previous prime is 43030427201. The next prime is 43030427239. The reversal of 43030427221 is 12272403034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34824784996 + 8205642225 = 186614^2 + 90585^2 .

It is a cyclic number.

It is not a de Polignac number, because 43030427221 - 2¹⁵ = 43030394453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43030427221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43030427201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21515213610 + 21515213611.

It is an arithmetic number, because the mean of its divisors is an integer number (21515213611).

Almost surely, 2^43030427221 is an apocalyptic number.

It is an amenable number.

43030427221 is a deficient number, since it is larger than the sum of its proper divisors (1).

43030427221 is an equidigital number, since it uses as much as digits as its factorization.

43030427221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The spelling of 43030427221 in words is "forty-three billion, thirty million, four hundred twenty-seven thousand, two hundred twenty-one".