113223444121 has 4 divisors (see below), whose sum is σ = 113430434512. Its totient is φ = 113016453732.

The previous prime is 113223444119. The next prime is 113223444151. The reversal of 113223444121 is 121444322311.

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.

It is a cyclic number.

It is not a de Polignac number, because 113223444121 - 2¹ = 113223444119 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 113223444121.

It is not an unprimeable number, because it can be changed into a prime (113223444101) 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, 103494375 + ... + 103495468.

It is an arithmetic number, because the mean of its divisors is an integer number (28357608628).

Almost surely, 2^113223444121 is an apocalyptic number.

It is an amenable number.

113223444121 is a deficient number, since it is larger than the sum of its proper divisors (206990391).

113223444121 is an equidigital number, since it uses as much as digits as its factorization.

113223444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206990390.

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

Adding to 113223444121 its reverse (121444322311), we get a palindrome (234667766432).

The spelling of 113223444121 in words is "one hundred thirteen billion, two hundred twenty-three million, four hundred forty-four thousand, one hundred twenty-one".