11123123033223 has 28 divisors (see below), whose sum is σ = 16888157577760. Its totient is φ = 7321549300416.

The previous prime is 11123123033219. The next prime is 11123123033293. The reversal of 11123123033223 is 32233032132111.

11123123033223 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 31 + 2 + 303 + 322 + 3 = 666.

It is not a de Polignac number, because 11123123033223 - 2² = 11123123033219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123123033293) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 96512386 + ... + 96627567.

It is an arithmetic number, because the mean of its divisors is an integer number (603148484920).

Almost surely, 2^{11123123033223} is an apocalyptic number.

11123123033223 is a deficient number, since it is larger than the sum of its proper divisors (5765034544537).

11123123033223 is an frugal number, since it uses more digits than its factorization.

11123123033223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193140050 (or 193140035 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 11123123033223 its reverse (32233032132111), we get a palindrome (43356155165334).

The spelling of 11123123033223 in words is "eleven trillion, one hundred twenty-three billion, one hundred twenty-three million, thirty-three thousand, two hundred twenty-three".