41320021 has 2 divisors, whose sum is σ = 41320022. Its totient is φ = 41320020.

The previous prime is 41319961. The next prime is 41320031. The reversal of 41320021 is 12002314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41139396 + 180625 = 6414^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 41320021 - 2¹⁷ = 41188949 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 41319983 and 41320010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41320031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20660010 + 20660011.

It is an arithmetic number, because the mean of its divisors is an integer number (20660011).

Almost surely, 2^41320021 is an apocalyptic number.

It is an amenable number.

41320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41320021 is an equidigital number, since it uses as much as digits as its factorization.

41320021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 41320021 is about 6428.0651054575. The cubic root of 41320021 is about 345.7165559304.

Adding to 41320021 its reverse (12002314), we get a palindrome (53322335).

The spelling of 41320021 in words is "forty-one million, three hundred twenty thousand, twenty-one".