1113031011 has 4 divisors (see below), whose sum is σ = 1484041352. Its totient is φ = 742020672.

The previous prime is 1113030979. The next prime is 1113031033. The reversal of 1113031011 is 1101303111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1101303111 = 3 ⋅367101037.

It is not a de Polignac number, because 1113031011 - 2⁵ = 1113030979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113031061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185505166 + ... + 185505171.

It is an arithmetic number, because the mean of its divisors is an integer number (371010338).

Almost surely, 2^1113031011 is an apocalyptic number.

1113031011 is a deficient number, since it is larger than the sum of its proper divisors (371010341).

1113031011 is an equidigital number, since it uses as much as digits as its factorization.

1113031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371010340.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1113031011 is about 33362.1194021003. The cubic root of 1113031011 is about 1036.3403829158.

Adding to 1113031011 its reverse (1101303111), we get a palindrome (2214334122).

The spelling of 1113031011 in words is "one billion, one hundred thirteen million, thirty-one thousand, eleven".