12123130322223 has 20 divisors (see below), whose sum is σ = 18229794220528. Its totient is φ = 8028563119200.

The previous prime is 12123130322221. The next prime is 12123130322267. The reversal of 12123130322223 is 32222303132121.

12123130322223 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 313 + 0 + 322 + 2 + 23 = 666.

It is not a de Polignac number, because 12123130322223 - 2¹ = 12123130322221 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 (12123130322221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 495578086 + ... + 495602547.

Almost surely, 2^{12123130322223} is an apocalyptic number.

12123130322223 is a deficient number, since it is larger than the sum of its proper divisors (6106663898305).

12123130322223 is an equidigital number, since it uses as much as digits as its factorization.

12123130322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991180796 (or 991180787 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 12123130322223 its reverse (32222303132121), we get a palindrome (44345433454344).

The spelling of 12123130322223 in words is "twelve trillion, one hundred twenty-three billion, one hundred thirty million, three hundred twenty-two thousand, two hundred twenty-three".