111133121023 has 16 divisors (see below), whose sum is σ = 116915909760. Its totient is φ = 105482361600.

The previous prime is 111133121003. The next prime is 111133121093. The reversal of 111133121023 is 320121331111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111133121023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111133121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3293011 + ... + 3326587.

It is an arithmetic number, because the mean of its divisors is an integer number (7307244360).

Almost surely, 2^111133121023 is an apocalyptic number.

111133121023 is a deficient number, since it is larger than the sum of its proper divisors (5782788737).

111133121023 is a wasteful number, since it uses less digits than its factorization.

111133121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35538.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111133121023 its reverse (320121331111), we get a palindrome (431254452134).

The spelling of 111133121023 in words is "one hundred eleven billion, one hundred thirty-three million, one hundred twenty-one thousand, twenty-three".