13044553121 has 8 divisors (see below), whose sum is σ = 13069778880. Its totient is φ = 13019346288.

The previous prime is 13044553097. The next prime is 13044553129. The reversal of 13044553121 is 12135544031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13044553121 - 2²² = 13040358817 is a prime.

It is a super-2 number, since 2×13044553121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13044553129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2853980 + ... + 2858546.

It is an arithmetic number, because the mean of its divisors is an integer number (1633722360).

Almost surely, 2^13044553121 is an apocalyptic number.

It is an amenable number.

13044553121 is a deficient number, since it is larger than the sum of its proper divisors (25225759).

13044553121 is an equidigital number, since it uses as much as digits as its factorization.

13044553121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 13044553121 in words is "thirteen billion, forty-four million, five hundred fifty-three thousand, one hundred twenty-one".