13604321243 has 8 divisors (see below), whose sum is σ = 13645324800. Its totient is φ = 13563347008.

The previous prime is 13604321239. The next prime is 13604321249. The reversal of 13604321243 is 34212340631.

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 13604321243 - 2² = 13604321239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13604321249) 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, 1223513 + ... + 1234581.

It is an arithmetic number, because the mean of its divisors is an integer number (1705665600).

Almost surely, 2^13604321243 is an apocalyptic number.

13604321243 is a deficient number, since it is larger than the sum of its proper divisors (41003557).

13604321243 is a wasteful number, since it uses less digits than its factorization.

13604321243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14661.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13604321243 its reverse (34212340631), we get a palindrome (47816661874).

The spelling of 13604321243 in words is "thirteen billion, six hundred four million, three hundred twenty-one thousand, two hundred forty-three".