11001223321 has 12 divisors (see below), whose sum is σ = 12272744176. Its totient is φ = 9851834520.

The previous prime is 11001223319. The next prime is 11001223327. The reversal of 11001223321 is 12332210011.

It is not a de Polignac number, because 11001223321 - 2¹ = 11001223319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001223295 and 11001223304.

It is not an unprimeable number, because it can be changed into a prime (11001223327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670395 + ... + 686608.

Almost surely, 2^11001223321 is an apocalyptic number.

11001223321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11001223321 is a deficient number, since it is larger than the sum of its proper divisors (1271520855).

11001223321 is a wasteful number, since it uses less digits than its factorization.

11001223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357092 (or 1357081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11001223321 its reverse (12332210011), we get a palindrome (23333433332).

The spelling of 11001223321 in words is "eleven billion, one million, two hundred twenty-three thousand, three hundred twenty-one".