402441320041 has 2 divisors, whose sum is σ = 402441320042. Its totient is φ = 402441320040.

The previous prime is 402441320011. The next prime is 402441320051. The reversal of 402441320041 is 140023144204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396768970816 + 5672349225 = 629896^2 + 75315^2 .

It is a cyclic number.

It is not a de Polignac number, because 402441320041 - 2¹⁷ = 402441188969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402441319988 and 402441320015.

It is not a weakly prime, because it can be changed into another prime (402441320011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201220660020 + 201220660021.

It is an arithmetic number, because the mean of its divisors is an integer number (201220660021).

Almost surely, 2^402441320041 is an apocalyptic number.

It is an amenable number.

402441320041 is a deficient number, since it is larger than the sum of its proper divisors (1).

402441320041 is an equidigital number, since it uses as much as digits as its factorization.

402441320041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 402441320041 its reverse (140023144204), we get a palindrome (542464464245).

The spelling of 402441320041 in words is "four hundred two billion, four hundred forty-one million, three hundred twenty thousand, forty-one".