41401244021 has 2 divisors, whose sum is σ = 41401244022. Its totient is φ = 41401244020.

The previous prime is 41401243993. The next prime is 41401244029. The reversal of 41401244021 is 12044210414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39714909796 + 1686334225 = 199286^2 + 41065^2 .

It is a cyclic number.

It is not a de Polignac number, because 41401244021 - 2¹⁸ = 41400981877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41401244029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20700622010 + 20700622011.

It is an arithmetic number, because the mean of its divisors is an integer number (20700622011).

Almost surely, 2^41401244021 is an apocalyptic number.

It is an amenable number.

41401244021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41401244021 is an equidigital number, since it uses as much as digits as its factorization.

41401244021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 41401244021 its reverse (12044210414), we get a palindrome (53445454435).

The spelling of 41401244021 in words is "forty-one billion, four hundred one million, two hundred forty-four thousand, twenty-one".