113311222123 has 4 divisors (see below), whose sum is σ = 123612242328. Its totient is φ = 103010201920.

The previous prime is 113311222081. The next prime is 113311222139. The reversal of 113311222123 is 321222113311.

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

It is a cyclic number.

It is not a de Polignac number, because 113311222123 - 2¹⁷ = 113311091051 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113311222094 and 113311222103.

It is not an unprimeable number, because it can be changed into a prime (113311222183) 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, 5150510086 + ... + 5150510107.

It is an arithmetic number, because the mean of its divisors is an integer number (30903060582).

Almost surely, 2^113311222123 is an apocalyptic number.

113311222123 is a deficient number, since it is larger than the sum of its proper divisors (10301020205).

113311222123 is a wasteful number, since it uses less digits than its factorization.

113311222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10301020204.

The product of its digits is 432, while the sum is 22.

Adding to 113311222123 its reverse (321222113311), we get a palindrome (434533335434).

The spelling of 113311222123 in words is "one hundred thirteen billion, three hundred eleven million, two hundred twenty-two thousand, one hundred twenty-three".