411412021 has 2 divisors, whose sum is σ = 411412022. Its totient is φ = 411412020.

The previous prime is 411411983. The next prime is 411412039. The reversal of 411412021 is 120214114.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405216900 + 6195121 = 20130^2 + 2489^2 .

It is a cyclic number.

It is not a de Polignac number, because 411412021 - 2¹⁵ = 411379253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 411411986 and 411412004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411412051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205706010 + 205706011.

It is an arithmetic number, because the mean of its divisors is an integer number (205706011).

Almost surely, 2^411412021 is an apocalyptic number.

It is an amenable number.

411412021 is a deficient number, since it is larger than the sum of its proper divisors (1).

411412021 is an equidigital number, since it uses as much as digits as its factorization.

411412021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 411412021 is about 20283.2941358153. The cubic root of 411412021 is about 743.7477399738.

Adding to 411412021 its reverse (120214114), we get a palindrome (531626135).

The spelling of 411412021 in words is "four hundred eleven million, four hundred twelve thousand, twenty-one".