21034342407041 has 2 divisors, whose sum is σ = 21034342407042. Its totient is φ = 21034342407040.

The previous prime is 21034342407007. The next prime is 21034342407053. The reversal of 21034342407041 is 14070424343012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18810471106816 + 2223871300225 = 4337104^2 + 1491265^2 .

It is a cyclic number.

It is not a de Polignac number, because 21034342407041 - 2²² = 21034338212737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21034342406992 and 21034342407010.

It is not a weakly prime, because it can be changed into another prime (21034342407241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10517171203520 + 10517171203521.

It is an arithmetic number, because the mean of its divisors is an integer number (10517171203521).

Almost surely, 2^{21034342407041} is an apocalyptic number.

It is an amenable number.

21034342407041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21034342407041 is an equidigital number, since it uses as much as digits as its factorization.

21034342407041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 21034342407041 in words is "twenty-one trillion, thirty-four billion, three hundred forty-two million, four hundred seven thousand, forty-one".