402121242301 has 2 divisors, whose sum is σ = 402121242302. Its totient is φ = 402121242300.

The previous prime is 402121242181. The next prime is 402121242317. The reversal of 402121242301 is 103242121204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395685031225 + 6436211076 = 629035^2 + 80226^2 .

It is a cyclic number.

It is not a de Polignac number, because 402121242301 - 2⁹ = 402121241789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402121242361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201060621150 + 201060621151.

It is an arithmetic number, because the mean of its divisors is an integer number (201060621151).

Almost surely, 2^402121242301 is an apocalyptic number.

It is an amenable number.

402121242301 is a deficient number, since it is larger than the sum of its proper divisors (1).

402121242301 is an equidigital number, since it uses as much as digits as its factorization.

402121242301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 402121242301 its reverse (103242121204), we get a palindrome (505363363505).

The spelling of 402121242301 in words is "four hundred two billion, one hundred twenty-one million, two hundred forty-two thousand, three hundred one".