111411110021 has 8 divisors (see below), whose sum is σ = 114065095584. Its totient is φ = 108759989520.

The previous prime is 111411110011. The next prime is 111411110029. The reversal of 111411110021 is 120011114111.

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 111411110021 - 2¹⁴ = 111411093637 is a prime.

It is a super-2 number, since 2×111411110021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111411109978 and 111411110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111411110029) 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 7 ways as a sum of consecutive naturals, for example, 637466 + ... + 793211.

It is an arithmetic number, because the mean of its divisors is an integer number (14258136948).

Almost surely, 2^111411110021 is an apocalyptic number.

It is an amenable number.

111411110021 is a deficient number, since it is larger than the sum of its proper divisors (2653985563).

111411110021 is a wasteful number, since it uses less digits than its factorization.

111411110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432531.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111411110021 its reverse (120011114111), we get a palindrome (231422224132).

The spelling of 111411110021 in words is "one hundred eleven billion, four hundred eleven million, one hundred ten thousand, twenty-one".