1111113021 has 8 divisors (see below), whose sum is σ = 1490920864. Its totient is φ = 736023600.

The previous prime is 1111112971. The next prime is 1111113053. The reversal of 1111113021 is 1203111111.

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

It is not a de Polignac number, because 1111113021 - 2²⁵ = 1077558589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111112988 and 1111113006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111112021) 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, 1179055 + ... + 1179996.

It is an arithmetic number, because the mean of its divisors is an integer number (186365108).

Almost surely, 2^1111113021 is an apocalyptic number.

It is an amenable number.

1111113021 is a deficient number, since it is larger than the sum of its proper divisors (379807843).

1111113021 is a wasteful number, since it uses less digits than its factorization.

1111113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359211.

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

The square root of 1111113021 is about 33333.3619816544. The cubic root of 1111113021 is about 1035.7447620978.

Adding to 1111113021 its reverse (1203111111), we get a palindrome (2314224132).

The spelling of 1111113021 in words is "one billion, one hundred eleven million, one hundred thirteen thousand, twenty-one".