1113135511 has 4 divisors (see below), whose sum is σ = 1115718624. Its totient is φ = 1110552400.

The previous prime is 1113135473. The next prime is 1113135547. The reversal of 1113135511 is 1155313111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1155313111 = 73 ⋅15826207.

It is a cyclic number.

It is not a de Polignac number, because 1113135511 - 2⁹ = 1113134999 is a prime.

It is a super-2 number, since 2×1113135511² = 2478141331698462242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113135581) 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, 1290910 + ... + 1291771.

It is an arithmetic number, because the mean of its divisors is an integer number (278929656).

Almost surely, 2^1113135511 is an apocalyptic number.

1113135511 is a deficient number, since it is larger than the sum of its proper divisors (2583113).

1113135511 is an equidigital number, since it uses as much as digits as its factorization.

1113135511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583112.

The product of its digits is 225, while the sum is 22.

The square root of 1113135511 is about 33363.6855128447. The cubic root of 1113135511 is about 1036.3728151301.

Adding to 1113135511 its reverse (1155313111), we get a palindrome (2268448622).

The spelling of 1113135511 in words is "one billion, one hundred thirteen million, one hundred thirty-five thousand, five hundred eleven".