11113222331 has 4 divisors (see below), whose sum is σ = 11114039664. Its totient is φ = 11112405000.

The previous prime is 11113222321. The next prime is 11113222451. The reversal of 11113222331 is 13322231111.

It is a happy number.

11113222331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11113222331 is a prime.

It is a super-2 number, since 2×11113222331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11113222301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387920 + ... + 415581.

It is an arithmetic number, because the mean of its divisors is an integer number (2778509916).

Almost surely, 2^11113222331 is an apocalyptic number.

11113222331 is a deficient number, since it is larger than the sum of its proper divisors (817333).

11113222331 is an equidigital number, since it uses as much as digits as its factorization.

11113222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817332.

The product of its digits is 216, while the sum is 20.

Adding to 11113222331 its reverse (13322231111), we get a palindrome (24435453442).

The spelling of 11113222331 in words is "eleven billion, one hundred thirteen million, two hundred twenty-two thousand, three hundred thirty-one".