401031345361 has 2 divisors, whose sum is σ = 401031345362. Its totient is φ = 401031345360.

The previous prime is 401031345359. The next prime is 401031345389. The reversal of 401031345361 is 163543130104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223743190225 + 177288155136 = 473015^2 + 421056^2 .

It is a cyclic number.

It is not a de Polignac number, because 401031345361 - 2¹ = 401031345359 is a prime.

It is a super-2 number, since 2×401031345361² (a number of 24 digits) contains 22 as substring.

Together with 401031345359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (401031345301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200515672680 + 200515672681.

It is an arithmetic number, because the mean of its divisors is an integer number (200515672681).

Almost surely, 2^401031345361 is an apocalyptic number.

It is an amenable number.

401031345361 is a deficient number, since it is larger than the sum of its proper divisors (1).

401031345361 is an equidigital number, since it uses as much as digits as its factorization.

401031345361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 401031345361 its reverse (163543130104), we get a palindrome (564574475465).

The spelling of 401031345361 in words is "four hundred one billion, thirty-one million, three hundred forty-five thousand, three hundred sixty-one".