442411121 has 2 divisors, whose sum is σ = 442411122. Its totient is φ = 442411120.

The previous prime is 442411091. The next prime is 442411129. The reversal of 442411121 is 121114244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339996721 + 102414400 = 18439^2 + 10120^2 .

It is a cyclic number.

It is not a de Polignac number, because 442411121 - 2¹⁸ = 442148977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442411093 and 442411102.

It is not a weakly prime, because it can be changed into another prime (442411129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221205560 + 221205561.

It is an arithmetic number, because the mean of its divisors is an integer number (221205561).

Almost surely, 2^442411121 is an apocalyptic number.

It is an amenable number.

442411121 is a deficient number, since it is larger than the sum of its proper divisors (1).

442411121 is an equidigital number, since it uses as much as digits as its factorization.

442411121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 256, while the sum is 20.

The square root of 442411121 is about 21033.5712849720. The cubic root of 442411121 is about 761.9772619242.

Adding to 442411121 its reverse (121114244), we get a palindrome (563525365).

The spelling of 442411121 in words is "four hundred forty-two million, four hundred eleven thousand, one hundred twenty-one".