123144444443 has 8 divisors (see below), whose sum is σ = 123655182768. Its totient is φ = 122634475744.

The previous prime is 123144444419. The next prime is 123144444481. The reversal of 123144444443 is 344444441321.

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 123144444443 - 2¹² = 123144440347 is a prime.

It is a super-2 number, since 2×123144444443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123144444397 and 123144444406.

It is not an unprimeable number, because it can be changed into a prime (123144444403) 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, 129380 + ... + 512862.

It is an arithmetic number, because the mean of its divisors is an integer number (15456897846).

Almost surely, 2^123144444443 is an apocalyptic number.

123144444443 is a deficient number, since it is larger than the sum of its proper divisors (510738325).

123144444443 is a wasteful number, since it uses less digits than its factorization.

123144444443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384813.

The product of its digits is 294912, while the sum is 38.

Adding to 123144444443 its reverse (344444441321), we get a palindrome (467588885764).

The spelling of 123144444443 in words is "one hundred twenty-three billion, one hundred forty-four million, four hundred forty-four thousand, four hundred forty-three".