13432044321 has 32 divisors (see below), whose sum is σ = 20775363840. Its totient is φ = 8560886400.

The previous prime is 13432044299. The next prime is 13432044349. The reversal of 13432044321 is 12344023431.

13432044321 is a `hidden beast` number, since 13 + 4 + 320 + 4 + 4 + 321 = 666.

It is not a de Polignac number, because 13432044321 - 2⁷ = 13432044193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13432044121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1511431 + ... + 1520291.

It is an arithmetic number, because the mean of its divisors is an integer number (649230120).

Almost surely, 2^13432044321 is an apocalyptic number.

It is an amenable number.

13432044321 is a deficient number, since it is larger than the sum of its proper divisors (7343319519).

13432044321 is a wasteful number, since it uses less digits than its factorization.

13432044321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13432044321 its reverse (12344023431), we get a palindrome (25776067752).

The spelling of 13432044321 in words is "thirteen billion, four hundred thirty-two million, forty-four thousand, three hundred twenty-one".