1111013111 has 4 divisors (see below), whose sum is σ = 1196475672. Its totient is φ = 1025550552.

The previous prime is 1111013089. The next prime is 1111013117. The reversal of 1111013111 is 1113101111.

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

It is not a de Polignac number, because 1111013111 - 2¹⁰ = 1111012087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111013092 and 1111013101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111013117) 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 3 ways as a sum of consecutive naturals, for example, 42731261 + ... + 42731286.

It is an arithmetic number, because the mean of its divisors is an integer number (299118918).

Almost surely, 2^1111013111 is an apocalyptic number.

1111013111 is a deficient number, since it is larger than the sum of its proper divisors (85462561).

1111013111 is an equidigital number, since it uses as much as digits as its factorization.

1111013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85462560.

The product of its (nonzero) digits is 3, while the sum is 11.

The square root of 1111013111 is about 33331.8632992517. The cubic root of 1111013111 is about 1035.7137168429.

Adding to 1111013111 its reverse (1113101111), we get a palindrome (2224114222).

The spelling of 1111013111 in words is "one billion, one hundred eleven million, thirteen thousand, one hundred eleven".