401303322421 has 4 divisors (see below), whose sum is σ = 401447213100. Its totient is φ = 401159431744.

The previous prime is 401303322419. The next prime is 401303322463. The reversal of 401303322421 is 124223303104.

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

It can be written as a sum of positive squares in 2 ways, for example, as 143834355025 + 257468967396 = 379255^2 + 507414^2 .

It is a cyclic number.

It is not a de Polignac number, because 401303322421 - 2¹ = 401303322419 is a prime.

It is a super-2 number, since 2×401303322421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401303322221) 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, 71941156 + ... + 71946733.

It is an arithmetic number, because the mean of its divisors is an integer number (100361803275).

Almost surely, 2^401303322421 is an apocalyptic number.

It is an amenable number.

401303322421 is a deficient number, since it is larger than the sum of its proper divisors (143890679).

401303322421 is a wasteful number, since it uses less digits than its factorization.

401303322421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143890678.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 401303322421 its reverse (124223303104), we get a palindrome (525526625525).

The spelling of 401303322421 in words is "four hundred one billion, three hundred three million, three hundred twenty-two thousand, four hundred twenty-one".