11331033331121 has 4 divisors (see below), whose sum is σ = 12949752378432. Its totient is φ = 9712314283812.

The previous prime is 11331033331109. The next prime is 11331033331141. The reversal of 11331033331121 is 12113333013311.

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 not a de Polignac number, because 11331033331121 - 2³⁰ = 11329959589297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331033331141) 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, 809359523645 + ... + 809359523658.

It is an arithmetic number, because the mean of its divisors is an integer number (3237438094608).

Almost surely, 2^{11331033331121} is an apocalyptic number.

It is an amenable number.

11331033331121 is a deficient number, since it is larger than the sum of its proper divisors (1618719047311).

11331033331121 is an equidigital number, since it uses as much as digits as its factorization.

11331033331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618719047310.

The product of its (nonzero) digits is 1458, while the sum is 26.

Adding to 11331033331121 its reverse (12113333013311), we get a palindrome (23444366344432).

The spelling of 11331033331121 in words is "eleven trillion, three hundred thirty-one billion, thirty-three million, three hundred thirty-one thousand, one hundred twenty-one".