11331131331133 has 4 divisors (see below), whose sum is σ = 11343569456448. Its totient is φ = 11318693205820.

The previous prime is 11331131331127. The next prime is 11331131331209. The reversal of 11331131331133 is 33113313113311.

It is a happy number.

11331131331133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11331131331133 - 2⁹ = 11331131330621 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 (11331131331433) 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, 6219061291 + ... + 6219063112.

It is an arithmetic number, because the mean of its divisors is an integer number (2835892364112).

Almost surely, 2^{11331131331133} is an apocalyptic number.

It is an amenable number.

11331131331133 is a deficient number, since it is larger than the sum of its proper divisors (12438125315).

11331131331133 is an equidigital number, since it uses as much as digits as its factorization.

11331131331133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12438125314.

The product of its digits is 2187, while the sum is 28.

Adding to 11331131331133 its reverse (33113313113311), we get a palindrome (44444444444444).

The spelling of 11331131331133 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred thirty-three".