13123131233223 has 8 divisors (see below), whose sum is σ = 19088190884736. Its totient is φ = 7953412868600.

The previous prime is 13123131233167. The next prime is 13123131233239. The reversal of 13123131233223 is 32233213132131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13123131233223 - 2⁶ = 13123131233159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123131233243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198835321683 + ... + 198835321748.

It is an arithmetic number, because the mean of its divisors is an integer number (2386023860592).

Almost surely, 2^{13123131233223} is an apocalyptic number.

13123131233223 is a deficient number, since it is larger than the sum of its proper divisors (5965059651513).

13123131233223 is a wasteful number, since it uses less digits than its factorization.

13123131233223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397670643445.

The product of its digits is 11664, while the sum is 30.

Adding to 13123131233223 its reverse (32233213132131), we get a palindrome (45356344365354).

The spelling of 13123131233223 in words is "thirteen trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred twenty-three".