113421024221 has 4 divisors (see below), whose sum is σ = 113437703232. Its totient is φ = 113404345212.

The previous prime is 113421024209. The next prime is 113421024239. The reversal of 113421024221 is 122420124311.

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 113421024221 - 2²² = 113416829917 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 (113421024281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8329301 + ... + 8342906.

It is an arithmetic number, because the mean of its divisors is an integer number (28359425808).

Almost surely, 2^113421024221 is an apocalyptic number.

It is an amenable number.

113421024221 is a deficient number, since it is larger than the sum of its proper divisors (16679011).

113421024221 is an equidigital number, since it uses as much as digits as its factorization.

113421024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16679010.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 113421024221 its reverse (122420124311), we get a palindrome (235841148532).

The spelling of 113421024221 in words is "one hundred thirteen billion, four hundred twenty-one million, twenty-four thousand, two hundred twenty-one".