111012033121 has 16 divisors (see below), whose sum is σ = 121497667200. Its totient is φ = 100592272000.

The previous prime is 111012033109. The next prime is 111012033131. The reversal of 111012033121 is 121330210111.

It is a happy number.

It is not a de Polignac number, because 111012033121 - 2¹¹ = 111012031073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111012033095 and 111012033104.

It is not an unprimeable number, because it can be changed into a prime (111012033131) 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, 10771671 + ... + 10781971.

It is an arithmetic number, because the mean of its divisors is an integer number (7593604200).

Almost surely, 2^111012033121 is an apocalyptic number.

111012033121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111012033121 is a deficient number, since it is larger than the sum of its proper divisors (10485634079).

111012033121 is a wasteful number, since it uses less digits than its factorization.

111012033121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111012033121 its reverse (121330210111), we get a palindrome (232342243232).

The spelling of 111012033121 in words is "one hundred eleven billion, twelve million, thirty-three thousand, one hundred twenty-one".