401310313181 has 2 divisors, whose sum is σ = 401310313182. Its totient is φ = 401310313180.

The previous prime is 401310313171. The next prime is 401310313207. The reversal of 401310313181 is 181313013104.

It is an a-pointer prime, because the next prime (401310313207) can be obtained adding 401310313181 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384015696100 + 17294617081 = 619690^2 + 131509^2 .

It is a cyclic number.

It is not a de Polignac number, because 401310313181 - 2¹⁴ = 401310296797 is a prime.

It is a super-2 number, since 2×401310313181² (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 401310313181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401310313121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200655156590 + 200655156591.

It is an arithmetic number, because the mean of its divisors is an integer number (200655156591).

Almost surely, 2^401310313181 is an apocalyptic number.

It is an amenable number.

401310313181 is a deficient number, since it is larger than the sum of its proper divisors (1).

401310313181 is an equidigital number, since it uses as much as digits as its factorization.

401310313181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 401310313181 its reverse (181313013104), we get a palindrome (582623326285).

The spelling of 401310313181 in words is "four hundred one billion, three hundred ten million, three hundred thirteen thousand, one hundred eighty-one".