11031123222 has 48 divisors (see below), whose sum is σ = 27411770880. Its totient is φ = 3140602416.

The previous prime is 11031123161. The next prime is 11031123241. The reversal of 11031123222 is 22232113011.

11031123222 is a `hidden beast` number, since 110 + 311 + 23 + 222 = 666.

It is a super-2 number, since 2×11031123222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11031123195 and 11031123204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119022 + ... + 190337.

It is an arithmetic number, because the mean of its divisors is an integer number (571078560).

Almost surely, 2^11031123222 is an apocalyptic number.

11031123222 is an abundant number, since it is smaller than the sum of its proper divisors (16380647658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11031123222 is a wasteful number, since it uses less digits than its factorization.

11031123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309657 (or 309654 counting only the distinct ones).

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

Adding to 11031123222 its reverse (22232113011), we get a palindrome (33263236233).

The spelling of 11031123222 in words is "eleven billion, thirty-one million, one hundred twenty-three thousand, two hundred twenty-two".