401342202243361 has 2 divisors, whose sum is σ = 401342202243362. Its totient is φ = 401342202243360.

The previous prime is 401342202243349. The next prime is 401342202243373. The reversal of 401342202243361 is 163342202243104.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (401342202243349) and next prime (401342202243373).

It can be written as a sum of positive squares in only one way, i.e., 223961251662225 + 177380950581136 = 14965335^2 + 13318444^2 .

It is a cyclic number.

It is not a de Polignac number, because 401342202243361 - 2³⁵ = 401307842504993 is a prime.

It is a super-2 number, since 2×401342202243361² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401342202243361.

It is not a weakly prime, because it can be changed into another prime (401342205243361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200671101121680 + 200671101121681.

It is an arithmetic number, because the mean of its divisors is an integer number (200671101121681).

Almost surely, 2^{401342202243361} is an apocalyptic number.

It is an amenable number.

401342202243361 is a deficient number, since it is larger than the sum of its proper divisors (1).

401342202243361 is an equidigital number, since it uses as much as digits as its factorization.

401342202243361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 401342202243361 its reverse (163342202243104), we get a palindrome (564684404486465).

The spelling of 401342202243361 in words is "four hundred one trillion, three hundred forty-two billion, two hundred two million, two hundred forty-three thousand, three hundred sixty-one".