113424341221 has 4 divisors (see below), whose sum is σ = 113431499244. Its totient is φ = 113417183200.

The previous prime is 113424341213. The next prime is 113424341263. The reversal of 113424341221 is 122143424311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103837973121 + 9586368100 = 322239^2 + 97910^2 .

It is a cyclic number.

It is not a de Polignac number, because 113424341221 - 2³ = 113424341213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113424341221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113424341621) 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, 3555190 + ... + 3586951.

It is an arithmetic number, because the mean of its divisors is an integer number (28357874811).

Almost surely, 2^113424341221 is an apocalyptic number.

It is an amenable number.

113424341221 is a deficient number, since it is larger than the sum of its proper divisors (7158023).

113424341221 is an equidigital number, since it uses as much as digits as its factorization.

113424341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158022.

The product of its digits is 4608, while the sum is 28.

Adding to 113424341221 its reverse (122143424311), we get a palindrome (235567765532).

The spelling of 113424341221 in words is "one hundred thirteen billion, four hundred twenty-four million, three hundred forty-one thousand, two hundred twenty-one".