11331021323 has 4 divisors (see below), whose sum is σ = 11823674448. Its totient is φ = 10838368200.

The previous prime is 11331021319. The next prime is 11331021337. The reversal of 11331021323 is 32312013311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11331021323 - 2² = 11331021319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331021295 and 11331021304.

It is not an unprimeable number, because it can be changed into a prime (11331021223) 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, 246326528 + ... + 246326573.

It is an arithmetic number, because the mean of its divisors is an integer number (2955918612).

Almost surely, 2^11331021323 is an apocalyptic number.

11331021323 is a deficient number, since it is larger than the sum of its proper divisors (492653125).

11331021323 is an equidigital number, since it uses as much as digits as its factorization.

11331021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492653124.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11331021323 its reverse (32312013311), we get a palindrome (43643034634).

The spelling of 11331021323 in words is "eleven billion, three hundred thirty-one million, twenty-one thousand, three hundred twenty-three".