11113110021 has 8 divisors (see below), whose sum is σ = 15957286240. Its totient is φ = 6838836912.

The previous prime is 11113109993. The next prime is 11113110049. The reversal of 11113110021 is 12001131111.

It is an interprime number because it is at equal distance from previous prime (11113109993) and next prime (11113110049).

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

It is not a de Polignac number, because 11113110021 - 2⁶ = 11113109957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113109979 and 11113110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113110121) 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, 142475731 + ... + 142475808.

It is an arithmetic number, because the mean of its divisors is an integer number (1994660780).

Almost surely, 2^11113110021 is an apocalyptic number.

It is an amenable number.

11113110021 is a deficient number, since it is larger than the sum of its proper divisors (4844176219).

11113110021 is a wasteful number, since it uses less digits than its factorization.

11113110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284951555.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11113110021 its reverse (12001131111), we get a palindrome (23114241132).

The spelling of 11113110021 in words is "eleven billion, one hundred thirteen million, one hundred ten thousand, twenty-one".