401320211 has 4 divisors (see below), whose sum is σ = 401473800. Its totient is φ = 401166624.

The previous prime is 401320193. The next prime is 401320217. The reversal of 401320211 is 112023104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401320211 is a prime.

It is a super-2 number, since 2×401320211² = 322115823514169042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401320217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72806 + ... + 78123.

It is an arithmetic number, because the mean of its divisors is an integer number (100368450).

Almost surely, 2^401320211 is an apocalyptic number.

401320211 is a deficient number, since it is larger than the sum of its proper divisors (153589).

401320211 is a wasteful number, since it uses less digits than its factorization.

401320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153588.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 401320211 is about 20032.9780861459. The cubic root of 401320211 is about 737.6160260239.

Adding to 401320211 its reverse (112023104), we get a palindrome (513343315).

The spelling of 401320211 in words is "four hundred one million, three hundred twenty thousand, two hundred eleven".