43212535202281 has 2 divisors, whose sum is σ = 43212535202282. Its totient is φ = 43212535202280.

The previous prime is 43212535202261. The next prime is 43212535202357. The reversal of 43212535202281 is 18220253521234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42853925856681 + 358609345600 = 6546291^2 + 598840^2 .

It is a cyclic number.

It is not a de Polignac number, because 43212535202281 - 2²¹ = 43212533105129 is a prime.

It is a super-2 number, since 2×43212535202281² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43212535202261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21606267601140 + 21606267601141.

It is an arithmetic number, because the mean of its divisors is an integer number (21606267601141).

Almost surely, 2^{43212535202281} is an apocalyptic number.

It is an amenable number.

43212535202281 is a deficient number, since it is larger than the sum of its proper divisors (1).

43212535202281 is an equidigital number, since it uses as much as digits as its factorization.

43212535202281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 43212535202281 in words is "forty-three trillion, two hundred twelve billion, five hundred thirty-five million, two hundred two thousand, two hundred eighty-one".