111121111133 has 8 divisors (see below), whose sum is σ = 118584087552. Its totient is φ = 103761072576.

The previous prime is 111121111109. The next prime is 111121111147. The reversal of 111121111133 is 331111121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111121111133 - 2⁶ = 111121111069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121111103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25732235 + ... + 25736552.

It is an arithmetic number, because the mean of its divisors is an integer number (14823010944).

Almost surely, 2^111121111133 is an apocalyptic number.

It is an amenable number.

111121111133 is a deficient number, since it is larger than the sum of its proper divisors (7462976419).

111121111133 is a wasteful number, since it uses less digits than its factorization.

111121111133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51468931.

The product of its digits is 18, while the sum is 17.

Adding to 111121111133 its reverse (331111121111), we get a palindrome (442232232244).

The spelling of 111121111133 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, one hundred thirty-three".