1044123540320 has 144 divisors (see below), whose sum is σ = 2872818845568. Its totient is φ = 357568081920.

The previous prime is 1044123540293. The next prime is 1044123540391. The reversal of 1044123540320 is 230453214401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6688760 + ... + 6843080.

It is an arithmetic number, because the mean of its divisors is an integer number (19950130872).

Almost surely, 2^{1044123540320} is an apocalyptic number.

1044123540320 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 1044123540320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436409422784).

1044123540320 is an abundant number, since it is smaller than the sum of its proper divisors (1828695305248).

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

1044123540320 is a wasteful number, since it uses less digits than its factorization.

1044123540320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155213 (or 155198 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1044123540320 its reverse (230453214401), we get a palindrome (1274576754721).

The spelling of 1044123540320 in words is "one trillion, forty-four billion, one hundred twenty-three million, five hundred forty thousand, three hundred twenty".