111130102021 has 16 divisors (see below), whose sum is σ = 112755513024. Its totient is φ = 109520014464.

The previous prime is 111130102001. The next prime is 111130102049. The reversal of 111130102021 is 120201031111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111130102021 - 2⁷ = 111130101893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111130101992 and 111130102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111130102001) 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, 9852441 + ... + 9863713.

It is an arithmetic number, because the mean of its divisors is an integer number (7047219564).

Almost surely, 2^111130102021 is an apocalyptic number.

It is an amenable number.

111130102021 is a deficient number, since it is larger than the sum of its proper divisors (1625411003).

111130102021 is a wasteful number, since it uses less digits than its factorization.

111130102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11940.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111130102021 its reverse (120201031111), we get a palindrome (231331133132).

The spelling of 111130102021 in words is "one hundred eleven billion, one hundred thirty million, one hundred two thousand, twenty-one".