113310211021 has 4 divisors (see below), whose sum is σ = 129497384032. Its totient is φ = 97123038012.

The previous prime is 113310211013. The next prime is 113310211031. The reversal of 113310211021 is 120112013311.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 120112013311 = 48371 ⋅2483141.

It is not a de Polignac number, because 113310211021 - 2³ = 113310211013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113310210986 and 113310211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113310211031) 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, 8093586495 + ... + 8093586508.

It is an arithmetic number, because the mean of its divisors is an integer number (32374346008).

Almost surely, 2^113310211021 is an apocalyptic number.

It is an amenable number.

113310211021 is a deficient number, since it is larger than the sum of its proper divisors (16187173011).

113310211021 is an equidigital number, since it uses as much as digits as its factorization.

113310211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16187173010.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 113310211021 its reverse (120112013311), we get a palindrome (233422224332).

The spelling of 113310211021 in words is "one hundred thirteen billion, three hundred ten million, two hundred eleven thousand, twenty-one".