113221202321 has 4 divisors (see below), whose sum is σ = 113225147700. Its totient is φ = 113217256944.

The previous prime is 113221202267. The next prime is 113221202323. The reversal of 113221202321 is 123202122311.

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 99265324096 + 13955878225 = 315064^2 + 118135^2 .

It is a cyclic number.

It is not a de Polignac number, because 113221202321 - 2³⁴ = 96041333137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113221202293 and 113221202302.

It is not an unprimeable number, because it can be changed into a prime (113221202323) 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, 1929326 + ... + 1987143.

It is an arithmetic number, because the mean of its divisors is an integer number (28306286925).

Almost surely, 2^113221202321 is an apocalyptic number.

It is an amenable number.

113221202321 is a deficient number, since it is larger than the sum of its proper divisors (3945379).

113221202321 is an equidigital number, since it uses as much as digits as its factorization.

113221202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945378.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 113221202321 its reverse (123202122311), we get a palindrome (236423324632).

The spelling of 113221202321 in words is "one hundred thirteen billion, two hundred twenty-one million, two hundred two thousand, three hundred twenty-one".