123223303443423 has 24 divisors (see below), whose sum is σ = 174532636488832. Its totient is φ = 77315775652224.

The previous prime is 123223303443421. The next prime is 123223303443463. The reversal of 123223303443423 is 324344303322321.

It is not a de Polignac number, because 123223303443423 - 2¹ = 123223303443421 is a prime.

It is a super-4 number, since 4×123223303443423⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223303443421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88582236 + ... + 89962542.

Almost surely, 2^{123223303443423} is an apocalyptic number.

123223303443423 is a deficient number, since it is larger than the sum of its proper divisors (51309333045409).

123223303443423 is a wasteful number, since it uses less digits than its factorization.

123223303443423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483311 (or 1483294 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 39.

Adding to 123223303443423 its reverse (324344303322321), we get a palindrome (447567606765744).

The spelling of 123223303443423 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, three hundred three million, four hundred forty-three thousand, four hundred twenty-three".