113113021113221 has 4 divisors (see below), whose sum is σ = 113115328131744. Its totient is φ = 113110714094700.

The previous prime is 113113021113179. The next prime is 113113021113251. The reversal of 113113021113221 is 122311120311311.

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 not a de Polignac number, because 113113021113221 - 2¹⁰ = 113113021112197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113113021113251) 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, 1153435715 + ... + 1153533776.

It is an arithmetic number, because the mean of its divisors is an integer number (28278832032936).

Almost surely, 2^{113113021113221} is an apocalyptic number.

It is an amenable number.

113113021113221 is a deficient number, since it is larger than the sum of its proper divisors (2307018523).

113113021113221 is an equidigital number, since it uses as much as digits as its factorization.

113113021113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307018522.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 113113021113221 its reverse (122311120311311), we get a palindrome (235424141424532).

The spelling of 113113021113221 in words is "one hundred thirteen trillion, one hundred thirteen billion, twenty-one million, one hundred thirteen thousand, two hundred twenty-one".