11121131323 has 16 divisors (see below), whose sum is σ = 11810193120. Its totient is φ = 10454056704.

The previous prime is 11121131303. The next prime is 11121131401. The reversal of 11121131323 is 32313112111.

It is a cyclic number.

It is not a de Polignac number, because 11121131323 - 2¹³ = 11121123131 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 11121131323.

It is not an unprimeable number, because it can be changed into a prime (11121131303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376065 + ... + 404557.

It is an arithmetic number, because the mean of its divisors is an integer number (738137070).

Almost surely, 2^11121131323 is an apocalyptic number.

11121131323 is a deficient number, since it is larger than the sum of its proper divisors (689061797).

11121131323 is a wasteful number, since it uses less digits than its factorization.

11121131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28878.

The product of its digits is 108, while the sum is 19.

Adding to 11121131323 its reverse (32313112111), we get a palindrome (43434243434).

The spelling of 11121131323 in words is "eleven billion, one hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-three".