401304311 has 4 divisors (see below), whose sum is σ = 401988552. Its totient is φ = 400620072.

The previous prime is 401304307. The next prime is 401304313. The reversal of 401304311 is 113403104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401304311 - 2² = 401304307 is a prime.

It is a super-2 number, since 2×401304311² = 322090300054369442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401304311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401304313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341240 + ... + 342413.

It is an arithmetic number, because the mean of its divisors is an integer number (100497138).

Almost surely, 2^401304311 is an apocalyptic number.

401304311 is a deficient number, since it is larger than the sum of its proper divisors (684241).

401304311 is an equidigital number, since it uses as much as digits as its factorization.

401304311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684240.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 401304311 is about 20032.5812365756. The cubic root of 401304311 is about 737.6062846342.

Adding to 401304311 its reverse (113403104), we get a palindrome (514707415).

The spelling of 401304311 in words is "four hundred one million, three hundred four thousand, three hundred eleven".