43010031141221 has 2 divisors, whose sum is σ = 43010031141222. Its totient is φ = 43010031141220.

The previous prime is 43010031141173. The next prime is 43010031141227. The reversal of 43010031141221 is 12214113001034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36419849032996 + 6590182108225 = 6034886^2 + 2567135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43010031141221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43010031141227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21505015570610 + 21505015570611.

It is an arithmetic number, because the mean of its divisors is an integer number (21505015570611).

Almost surely, 2^{43010031141221} is an apocalyptic number.

It is an amenable number.

43010031141221 is a deficient number, since it is larger than the sum of its proper divisors (1).

43010031141221 is an equidigital number, since it uses as much as digits as its factorization.

43010031141221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 43010031141221 its reverse (12214113001034), we get a palindrome (55224144142255).

The spelling of 43010031141221 in words is "forty-three trillion, ten billion, thirty-one million, one hundred forty-one thousand, two hundred twenty-one".