11022131223 has 12 divisors (see below), whose sum is σ = 15924498928. Its totient is φ = 7346406240.

The previous prime is 11022131221. The next prime is 11022131291. The reversal of 11022131223 is 32213122011.

11022131223 is a `hidden beast` number, since 110 + 221 + 312 + 23 = 666.

It is not a de Polignac number, because 11022131223 - 2¹ = 11022131221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022131196 and 11022131205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022131221) 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, 97915 + ... + 177852.

Almost surely, 2^11022131223 is an apocalyptic number.

11022131223 is a deficient number, since it is larger than the sum of its proper divisors (4902367705).

11022131223 is a wasteful number, since it uses less digits than its factorization.

11022131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280214 (or 280211 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11022131223 its reverse (32213122011), we get a palindrome (43235253234).

The spelling of 11022131223 in words is "eleven billion, twenty-two million, one hundred thirty-one thousand, two hundred twenty-three".