113221403 has 4 divisors (see below), whose sum is σ = 113268240. Its totient is φ = 113174568.

The previous prime is 113221397. The next prime is 113221417. The reversal of 113221403 is 304122311.

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

It is a cyclic number.

It is not a de Polignac number, because 113221403 - 2¹⁴ = 113205019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113221453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19583 + ... + 24696.

It is an arithmetic number, because the mean of its divisors is an integer number (28317060).

Almost surely, 2^113221403 is an apocalyptic number.

113221403 is a deficient number, since it is larger than the sum of its proper divisors (46837).

113221403 is an equidigital number, since it uses as much as digits as its factorization.

113221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46836.

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

The square root of 113221403 is about 10640.5546377997. The cubic root of 113221403 is about 483.7743566626.

Adding to 113221403 its reverse (304122311), we get a palindrome (417343714).

The spelling of 113221403 in words is "one hundred thirteen million, two hundred twenty-one thousand, four hundred three".