401340510071 has 2 divisors, whose sum is σ = 401340510072. Its totient is φ = 401340510070.

The previous prime is 401340510013. The next prime is 401340510097. The reversal of 401340510071 is 170015043104.

It is an a-pointer prime, because the next prime (401340510097) can be obtained adding 401340510071 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401340510071 - 2²² = 401336315767 is a prime.

It is a super-2 number, since 2×401340510071² (a number of 24 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 401340510071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401340510871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200670255035 + 200670255036.

It is an arithmetic number, because the mean of its divisors is an integer number (200670255036).

Almost surely, 2^401340510071 is an apocalyptic number.

401340510071 is a deficient number, since it is larger than the sum of its proper divisors (1).

401340510071 is an equidigital number, since it uses as much as digits as its factorization.

401340510071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 401340510071 its reverse (170015043104), we get a palindrome (571355553175).

The spelling of 401340510071 in words is "four hundred one billion, three hundred forty million, five hundred ten thousand, seventy-one".