11331121323 has 8 divisors (see below), whose sum is σ = 15124289488. Its totient is φ = 7546017024.

The previous prime is 11331121313. The next prime is 11331121337. The reversal of 11331121323 is 32312113311.

It is a happy number.

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

It is not a de Polignac number, because 11331121323 - 2¹⁰ = 11331120299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11331121323.

It is not an unprimeable number, because it can be changed into a prime (11331121313) 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, 2012686 + ... + 2018307.

It is an arithmetic number, because the mean of its divisors is an integer number (1890536186).

Almost surely, 2^11331121323 is an apocalyptic number.

11331121323 is a deficient number, since it is larger than the sum of its proper divisors (3793168165).

11331121323 is an equidigital number, since it uses as much as digits as its factorization.

11331121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031933.

The product of its digits is 324, while the sum is 21.

Adding to 11331121323 its reverse (32312113311), we get a palindrome (43643234634).

The spelling of 11331121323 in words is "eleven billion, three hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-three".