403113221 has 16 divisors (see below), whose sum is σ = 473149440. Its totient is φ = 336314160.

The previous prime is 403113211. The next prime is 403113251. The reversal of 403113221 is 122311304.

It is not a de Polignac number, because 403113221 - 2²² = 398918917 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 403113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403113211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34130 + ... + 44396.

It is an arithmetic number, because the mean of its divisors is an integer number (29571840).

Almost surely, 2^403113221 is an apocalyptic number.

It is an amenable number.

403113221 is a deficient number, since it is larger than the sum of its proper divisors (70036219).

403113221 is a wasteful number, since it uses less digits than its factorization.

403113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424.

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

The square root of 403113221 is about 20077.6796717151. The cubic root of 403113221 is about 738.7128959084.

Adding to 403113221 its reverse (122311304), we get a palindrome (525424525).

The spelling of 403113221 in words is "four hundred three million, one hundred thirteen thousand, two hundred twenty-one".