13044342320400 has 120 divisors (see below), whose sum is σ = 43226251735680. Its totient is φ = 3358543301120.

The previous prime is 13044342320351. The next prime is 13044342320441. The reversal of 13044342320400 is 402324344031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 187383912 + ... + 187453511.

It is an arithmetic number, because the mean of its divisors is an integer number (360218764464).

Almost surely, 2^{13044342320400} is an apocalyptic number.

13044342320400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044342320400 is an abundant number, since it is smaller than the sum of its proper divisors (30181909415280).

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

13044342320400 is a wasteful number, since it uses less digits than its factorization.

13044342320400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374837473 (or 374837462 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 13044342320400 its reverse (402324344031), we get a palindrome (13446666664431).

The spelling of 13044342320400 in words is "thirteen trillion, forty-four billion, three hundred forty-two million, three hundred twenty thousand, four hundred".