13444220331123 has 8 divisors (see below), whose sum is σ = 17928194174208. Its totient is φ = 8961530021064.

The previous prime is 13444220331023. The next prime is 13444220331163. The reversal of 13444220331123 is 32113302244431.

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

It is not a de Polignac number, because 13444220331123 - 2¹⁷ = 13444220200051 is a prime.

It is a super-2 number, since 2×13444220331123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13444220331163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320858815 + ... + 320900712.

It is an arithmetic number, because the mean of its divisors is an integer number (2241024271776).

Almost surely, 2^{13444220331123} is an apocalyptic number.

13444220331123 is a deficient number, since it is larger than the sum of its proper divisors (4483973843085).

13444220331123 is an equidigital number, since it uses as much as digits as its factorization.

13444220331123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641766513.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 13444220331123 its reverse (32113302244431), we get a palindrome (45557522575554).

The spelling of 13444220331123 in words is "thirteen trillion, four hundred forty-four billion, two hundred twenty million, three hundred thirty-one thousand, one hundred twenty-three".