11631244133 has 4 divisors (see below), whose sum is σ = 11746405068. Its totient is φ = 11516083200.

The previous prime is 11631244099. The next prime is 11631244139. The reversal of 11631244133 is 33144213611.

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: 33144213611 = 31 ⋅1069168181.

It can be written as a sum of positive squares in 2 ways, for example, as 5650077889 + 5981166244 = 75167^2 + 77338^2 .

It is a cyclic number.

It is not a de Polignac number, because 11631244133 - 2¹⁰ = 11631243109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11631244096 and 11631244105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631244139) 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, 57580316 + ... + 57580517.

It is an arithmetic number, because the mean of its divisors is an integer number (2936601267).

Almost surely, 2^11631244133 is an apocalyptic number.

It is an amenable number.

11631244133 is a deficient number, since it is larger than the sum of its proper divisors (115160935).

11631244133 is a wasteful number, since it uses less digits than its factorization.

11631244133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115160934.

The product of its digits is 5184, while the sum is 29.

Adding to 11631244133 its reverse (33144213611), we get a palindrome (44775457744).

The spelling of 11631244133 in words is "eleven billion, six hundred thirty-one million, two hundred forty-four thousand, one hundred thirty-three".