123033111223 has 4 divisors (see below), whose sum is σ = 134217939528. Its totient is φ = 111848282920.

The previous prime is 123033111217. The next prime is 123033111241. The reversal of 123033111223 is 322111330321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123033111223 is a prime.

It is a super-2 number, since 2×123033111223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123033111194 and 123033111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123033111293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592414136 + ... + 5592414157.

It is an arithmetic number, because the mean of its divisors is an integer number (33554484882).

Almost surely, 2^123033111223 is an apocalyptic number.

123033111223 is a deficient number, since it is larger than the sum of its proper divisors (11184828305).

123033111223 is a wasteful number, since it uses less digits than its factorization.

123033111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184828304.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123033111223 its reverse (322111330321), we get a palindrome (445144441544).

It can be divided in two parts, 123033 and 111223, that added together give a 4-th power (234256 = 22⁴).

The spelling of 123033111223 in words is "one hundred twenty-three billion, thirty-three million, one hundred eleven thousand, two hundred twenty-three".