113224021321 has 4 divisors (see below), whose sum is σ = 113224768272. Its totient is φ = 113223274372.

The previous prime is 113224021319. The next prime is 113224021349. The reversal of 113224021321 is 123120422311.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 113224021321 - 2¹ = 113224021319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113224021292 and 113224021301.

It is not an unprimeable number, because it can be changed into a prime (113224021621) 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, 56335 + ... + 479188.

It is an arithmetic number, because the mean of its divisors is an integer number (28306192068).

Almost surely, 2^113224021321 is an apocalyptic number.

It is an amenable number.

113224021321 is a deficient number, since it is larger than the sum of its proper divisors (746951).

113224021321 is an equidigital number, since it uses as much as digits as its factorization.

113224021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746950.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 113224021321 its reverse (123120422311), we get a palindrome (236344443632).

The spelling of 113224021321 in words is "one hundred thirteen billion, two hundred twenty-four million, twenty-one thousand, three hundred twenty-one".