11331131331111 has 8 divisors (see below), whose sum is σ = 15191645689584. Its totient is φ = 7512352263360.

The previous prime is 11331131331083. The next prime is 11331131331119. The reversal of 11331131331111 is 11113313113311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11331131331111 - 2¹⁹ = 11331130806823 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131331119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10433822046 + ... + 10433823131.

It is an arithmetic number, because the mean of its divisors is an integer number (1898955711198).

Almost surely, 2^{11331131331111} is an apocalyptic number.

11331131331111 is a deficient number, since it is larger than the sum of its proper divisors (3860514358473).

11331131331111 is a wasteful number, since it uses less digits than its factorization.

11331131331111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20867645361.

The product of its digits is 243, while the sum is 24.

Adding to 11331131331111 its reverse (11113313113311), we get a palindrome (22444444444422).

The spelling of 11331131331111 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred eleven".