401243322413 has 2 divisors, whose sum is σ = 401243322414. Its totient is φ = 401243322412.

The previous prime is 401243322407. The next prime is 401243322421. The reversal of 401243322413 is 314223342104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369842773609 + 31400548804 = 608147^2 + 177202^2 .

It is a cyclic number.

It is not a de Polignac number, because 401243322413 - 2⁴ = 401243322397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401243322713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200621661206 + 200621661207.

It is an arithmetic number, because the mean of its divisors is an integer number (200621661207).

Almost surely, 2^401243322413 is an apocalyptic number.

It is an amenable number.

401243322413 is a deficient number, since it is larger than the sum of its proper divisors (1).

401243322413 is an equidigital number, since it uses as much as digits as its factorization.

401243322413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 401243322413 its reverse (314223342104), we get a palindrome (715466664517).

The spelling of 401243322413 in words is "four hundred one billion, two hundred forty-three million, three hundred twenty-two thousand, four hundred thirteen".