13402112043144 has 128 divisors (see below), whose sum is σ = 37140286740480. Its totient is φ = 3995935891200.

The previous prime is 13402112043127. The next prime is 13402112043157. The reversal of 13402112043144 is 44134021120431.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14643729 + ... + 15531999.

It is an arithmetic number, because the mean of its divisors is an integer number (290158490160).

Almost surely, 2^{13402112043144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13402112043144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18570143370240).

13402112043144 is an abundant number, since it is smaller than the sum of its proper divisors (23738174697336).

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

13402112043144 is a wasteful number, since it uses less digits than its factorization.

13402112043144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889211 (or 889207 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 13402112043144 its reverse (44134021120431), we get a palindrome (57536133163575).

The spelling of 13402112043144 in words is "thirteen trillion, four hundred two billion, one hundred twelve million, forty-three thousand, one hundred forty-four".