144121011423440 has 160 divisors (see below), whose sum is σ = 361717178618880. Its totient is φ = 53199585533952.

The previous prime is 144121011423379. The next prime is 144121011423589. The reversal of 144121011423440 is 44324110121441.

It is a junction number, because it is equal to n+sod(n) for n = 144121011423397 and 144121011423406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112311371 + ... + 113587349.

It is an arithmetic number, because the mean of its divisors is an integer number (2260732366368).

Almost surely, 2^{144121011423440} is an apocalyptic number.

144121011423440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144121011423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180858589309440).

144121011423440 is an abundant number, since it is smaller than the sum of its proper divisors (217596167195440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144121011423440 is a wasteful number, since it uses less digits than its factorization.

144121011423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277629 (or 1277623 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 144121011423440 its reverse (44324110121441), we get a palindrome (188445121544881).

The spelling of 144121011423440 in words is "one hundred forty-four trillion, one hundred twenty-one billion, eleven million, four hundred twenty-three thousand, four hundred forty".