43221645141131 has 2 divisors, whose sum is σ = 43221645141132. Its totient is φ = 43221645141130.

The previous prime is 43221645141107. The next prime is 43221645141163. The reversal of 43221645141131 is 13114154612234.

43221645141131 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 is a cyclic number.

It is not a de Polignac number, because 43221645141131 - 2¹⁸ = 43221644878987 is a prime.

It is a super-2 number, since 2×43221645141131² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (43221645141431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21610822570565 + 21610822570566.

It is an arithmetic number, because the mean of its divisors is an integer number (21610822570566).

Almost surely, 2^{43221645141131} is an apocalyptic number.

43221645141131 is a deficient number, since it is larger than the sum of its proper divisors (1).

43221645141131 is an equidigital number, since it uses as much as digits as its factorization.

43221645141131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

Adding to 43221645141131 its reverse (13114154612234), we get a palindrome (56335799753365).

The spelling of 43221645141131 in words is "forty-three trillion, two hundred twenty-one billion, six hundred forty-five million, one hundred forty-one thousand, one hundred thirty-one".