403340144221 has 4 divisors (see below), whose sum is σ = 460960164832. Its totient is φ = 345720123612.

The previous prime is 403340144219. The next prime is 403340144243. The reversal of 403340144221 is 122441043304.

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 403340144221 - 2¹ = 403340144219 is a prime.

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 403340144221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403340144021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28810010295 + ... + 28810010308.

It is an arithmetic number, because the mean of its divisors is an integer number (115240041208).

Almost surely, 2^403340144221 is an apocalyptic number.

It is an amenable number.

403340144221 is a deficient number, since it is larger than the sum of its proper divisors (57620020611).

403340144221 is an equidigital number, since it uses as much as digits as its factorization.

403340144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57620020610.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 403340144221 its reverse (122441043304), we get a palindrome (525781187525).

The spelling of 403340144221 in words is "four hundred three billion, three hundred forty million, one hundred forty-four thousand, two hundred twenty-one".