11232121223 has 4 divisors (see below), whose sum is σ = 11236055520. Its totient is φ = 11228186928.

The previous prime is 11232121211. The next prime is 11232121249. The reversal of 11232121223 is 32212123211.

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

It is a cyclic number.

It is not a de Polignac number, because 11232121223 - 2⁴ = 11232121207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11232121195 and 11232121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232123223) 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, 1962863 + ... + 1968576.

It is an arithmetic number, because the mean of its divisors is an integer number (2809013880).

Almost surely, 2^11232121223 is an apocalyptic number.

11232121223 is a deficient number, since it is larger than the sum of its proper divisors (3934297).

11232121223 is an equidigital number, since it uses as much as digits as its factorization.

11232121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934296.

The product of its digits is 288, while the sum is 20.

Adding to 11232121223 its reverse (32212123211), we get a palindrome (43444244434).

The spelling of 11232121223 in words is "eleven billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty-three".