13044012320020 has 192 divisors, whose sum is σ = 30743332945920. Its totient is φ = 4609107430400.

The previous prime is 13044012319999. The next prime is 13044012320077. The reversal of 13044012320020 is 2002321044031.

It is a super-3 number, since 3×13044012320020³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13044012319973 and 13044012320000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 310380729 + ... + 310422751.

It is an arithmetic number, because the mean of its divisors is an integer number (160121525760).

Almost surely, 2^{13044012320020} is an apocalyptic number.

13044012320020 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 13044012320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15371666472960).

13044012320020 is an abundant number, since it is smaller than the sum of its proper divisors (17699320625900).

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

13044012320020 is a wasteful number, since it uses less digits than its factorization.

13044012320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42406 (or 42404 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13044012320020 its reverse (2002321044031), we get a palindrome (15046333364051).

The spelling of 13044012320020 in words is "thirteen trillion, forty-four billion, twelve million, three hundred twenty thousand, twenty".