13401444320112 has 80 divisors (see below), whose sum is σ = 34976481782528. Its totient is φ = 4421251330560.

The previous prime is 13401444320087. The next prime is 13401444320161. The reversal of 13401444320112 is 21102344410431.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13401444320112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7893687 + ... + 9439977.

Almost surely, 2^{13401444320112} is an apocalyptic number.

13401444320112 is a gapful number since it is divisible by the number (12) 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 13401444320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17488240891264).

13401444320112 is an abundant number, since it is smaller than the sum of its proper divisors (21575037462416).

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

13401444320112 is a wasteful number, since it uses less digits than its factorization.

13401444320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548158 (or 1548152 counting only the distinct ones).

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

Adding to 13401444320112 its reverse (21102344410431), we get a palindrome (34503788730543).

The spelling of 13401444320112 in words is "thirteen trillion, four hundred one billion, four hundred forty-four million, three hundred twenty thousand, one hundred twelve".