11240115133 has 36 divisors (see below), whose sum is σ = 13290598260. Its totient is φ = 9488973312.

The previous prime is 11240115127. The next prime is 11240115149. The reversal of 11240115133 is 33151104211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1695215929 + 9544899204 = 41173^2 + 97698^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11240115133 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 (11240115113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1766085 + ... + 1772437.

It is an arithmetic number, because the mean of its divisors is an integer number (369183285).

Almost surely, 2^11240115133 is an apocalyptic number.

11240115133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11240115133 is a deficient number, since it is larger than the sum of its proper divisors (2050483127).

11240115133 is a wasteful number, since it uses less digits than its factorization.

11240115133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6414 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 11240115133 its reverse (33151104211), we get a palindrome (44391219344).

The spelling of 11240115133 in words is "eleven billion, two hundred forty million, one hundred fifteen thousand, one hundred thirty-three".