401401424321 has 4 divisors (see below), whose sum is σ = 405298525632. Its totient is φ = 397504323012.

The previous prime is 401401424243. The next prime is 401401424327. The reversal of 401401424321 is 123424104104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401401424321 - 2²⁶ = 401334315457 is a prime.

It is a super-2 number, since 2×401401424321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401401424327) 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, 1948550501 + ... + 1948550706.

It is an arithmetic number, because the mean of its divisors is an integer number (101324631408).

Almost surely, 2^401401424321 is an apocalyptic number.

It is an amenable number.

401401424321 is a deficient number, since it is larger than the sum of its proper divisors (3897101311).

401401424321 is a wasteful number, since it uses less digits than its factorization.

401401424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897101310.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 401401424321 its reverse (123424104104), we get a palindrome (524825528425).

The spelling of 401401424321 in words is "four hundred one billion, four hundred one million, four hundred twenty-four thousand, three hundred twenty-one".