11123013321 has 24 divisors (see below), whose sum is σ = 18365457344. Its totient is φ = 6354741600.

The previous prime is 11123013313. The next prime is 11123013329. The reversal of 11123013321 is 12331032111.

11123013321 is a `hidden beast` number, since 111 + 230 + 1 + 3 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (11123013313) and next prime (11123013329).

It is not a de Polignac number, because 11123013321 - 2³ = 11123013313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11123013294 and 11123013303.

It is not an unprimeable number, because it can be changed into a prime (11123013329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367671 + ... + 396771.

Almost surely, 2^11123013321 is an apocalyptic number.

It is an amenable number.

11123013321 is a deficient number, since it is larger than the sum of its proper divisors (7242444023).

11123013321 is a wasteful number, since it uses less digits than its factorization.

11123013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35181 (or 35178 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11123013321 its reverse (12331032111), we get a palindrome (23454045432).

The spelling of 11123013321 in words is "eleven billion, one hundred twenty-three million, thirteen thousand, three hundred twenty-one".