123144444213 has 8 divisors (see below), whose sum is σ = 187648676928. Its totient is φ = 70368253824.

The previous prime is 123144444191. The next prime is 123144444217. The reversal of 123144444213 is 312444441321.

It is a happy number.

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

It is not a de Polignac number, because 123144444213 - 2⁶ = 123144444149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123144444217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2932010556 + ... + 2932010597.

It is an arithmetic number, because the mean of its divisors is an integer number (23456084616).

Almost surely, 2^123144444213 is an apocalyptic number.

It is an amenable number.

123144444213 is a deficient number, since it is larger than the sum of its proper divisors (64504232715).

123144444213 is an equidigital number, since it uses as much as digits as its factorization.

123144444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5864021163.

The product of its digits is 36864, while the sum is 33.

Adding to 123144444213 its reverse (312444441321), we get a palindrome (435588885534).

The spelling of 123144444213 in words is "one hundred twenty-three billion, one hundred forty-four million, four hundred forty-four thousand, two hundred thirteen".