43030412221361 has 2 divisors, whose sum is σ = 43030412221362. Its totient is φ = 43030412221360.

The previous prime is 43030412221337. The next prime is 43030412221387. The reversal of 43030412221361 is 16312221403034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33312578607025 + 9717833614336 = 5771705^2 + 3117344^2 .

It is a cyclic number.

It is not a de Polignac number, because 43030412221361 - 2¹⁰ = 43030412220337 is a prime.

It is a super-2 number, since 2×43030412221361² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43030412221561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21515206110680 + 21515206110681.

It is an arithmetic number, because the mean of its divisors is an integer number (21515206110681).

Almost surely, 2^{43030412221361} is an apocalyptic number.

It is an amenable number.

43030412221361 is a deficient number, since it is larger than the sum of its proper divisors (1).

43030412221361 is an equidigital number, since it uses as much as digits as its factorization.

43030412221361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 43030412221361 its reverse (16312221403034), we get a palindrome (59342633624395).

The spelling of 43030412221361 in words is "forty-three trillion, thirty billion, four hundred twelve million, two hundred twenty-one thousand, three hundred sixty-one".