113013203321 has 4 divisors (see below), whose sum is σ = 113235233700. Its totient is φ = 112791172944.

The previous prime is 113013203309. The next prime is 113013203339. The reversal of 113013203321 is 123302310311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123302310311 = 31 ⋅3977493881.

It can be written as a sum of positive squares in 2 ways, for example, as 59080108096 + 53933095225 = 243064^2 + 232235^2 .

It is a cyclic number.

It is not a de Polignac number, because 113013203321 - 2⁶ = 113013203257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113013203293 and 113013203302.

It is not an unprimeable number, because it can be changed into a prime (113013203221) 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, 111014426 + ... + 111015443.

It is an arithmetic number, because the mean of its divisors is an integer number (28308808425).

Almost surely, 2^113013203321 is an apocalyptic number.

It is an amenable number.

113013203321 is a deficient number, since it is larger than the sum of its proper divisors (222030379).

113013203321 is an equidigital number, since it uses as much as digits as its factorization.

113013203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222030378.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 113013203321 its reverse (123302310311), we get a palindrome (236315513632).

The spelling of 113013203321 in words is "one hundred thirteen billion, thirteen million, two hundred three thousand, three hundred twenty-one".