11135235131 has 4 divisors (see below), whose sum is σ = 11141461200. Its totient is φ = 11129009064.

The previous prime is 11135235107. The next prime is 11135235169. The reversal of 11135235131 is 13153253111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13153253111 = 53 ⋅248174587.

It is a cyclic number.

It is not a de Polignac number, because 11135235131 - 2²² = 11131040827 is a prime.

It is a super-2 number, since 2×11135235131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11135235131.

It is not an unprimeable number, because it can be changed into a prime (11135235101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3110351 + ... + 3113928.

It is an arithmetic number, because the mean of its divisors is an integer number (2785365300).

Almost surely, 2^11135235131 is an apocalyptic number.

11135235131 is a deficient number, since it is larger than the sum of its proper divisors (6226069).

11135235131 is an equidigital number, since it uses as much as digits as its factorization.

11135235131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226068.

The product of its digits is 1350, while the sum is 26.

Adding to 11135235131 its reverse (13153253111), we get a palindrome (24288488242).

The spelling of 11135235131 in words is "eleven billion, one hundred thirty-five million, two hundred thirty-five thousand, one hundred thirty-one".