113201321 has 4 divisors (see below), whose sum is σ = 113400144. Its totient is φ = 113002500.

The previous prime is 113201303. The next prime is 113201329. The reversal of 113201321 is 123102311.

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 a de Polignac number, because none of the positive numbers 2^k-113201321 is a prime.

It is a super-2 number, since 2×113201321² = 25629078152290082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 113201296 and 113201305.

It is not an unprimeable number, because it can be changed into a prime (113201329) 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, 98555 + ... + 99696.

It is an arithmetic number, because the mean of its divisors is an integer number (28350036).

Almost surely, 2^113201321 is an apocalyptic number.

It is an amenable number.

113201321 is a deficient number, since it is larger than the sum of its proper divisors (198823).

113201321 is an equidigital number, since it uses as much as digits as its factorization.

113201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198822.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113201321 is about 10639.6109421351. The cubic root of 113201321 is about 483.7457527331.

Adding to 113201321 its reverse (123102311), we get a palindrome (236303632).

The spelling of 113201321 in words is "one hundred thirteen million, two hundred one thousand, three hundred twenty-one".