1113023111 has 4 divisors (see below), whose sum is σ = 1126433112. Its totient is φ = 1099613112.

The previous prime is 1113023077. The next prime is 1113023123. The reversal of 1113023111 is 1113203111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1113023111 - 2³⁰ = 39281287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113023311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6704876 + ... + 6705041.

It is an arithmetic number, because the mean of its divisors is an integer number (281608278).

Almost surely, 2^1113023111 is an apocalyptic number.

1113023111 is a deficient number, since it is larger than the sum of its proper divisors (13410001).

1113023111 is an equidigital number, since it uses as much as digits as its factorization.

1113023111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410000.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1113023111 is about 33362.0010041364. The cubic root of 1113023111 is about 1036.3379310200.

Adding to 1113023111 its reverse (1113203111), we get a palindrome (2226226222).

The spelling of 1113023111 in words is "one billion, one hundred thirteen million, twenty-three thousand, one hundred eleven".