13400004232321 has 12 divisors (see below), whose sum is σ = 15587878802580. Its totient is φ = 11485630393440.

The previous prime is 13400004232297. The next prime is 13400004232357. The reversal of 13400004232321 is 12323240000431.

13400004232321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3760345383921 + 9639658848400 = 1939161^2 + 3104780^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13400004232321 is a prime.

It is a super-2 number, since 2×13400004232321² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13400004232421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5924775 + ... + 7867843.

It is an arithmetic number, because the mean of its divisors is an integer number (1298989900215).

Almost surely, 2^{13400004232321} is an apocalyptic number.

It is an amenable number.

13400004232321 is a deficient number, since it is larger than the sum of its proper divisors (2187874570259).

13400004232321 is a wasteful number, since it uses less digits than its factorization.

13400004232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083824 (or 2083817 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13400004232321 its reverse (12323240000431), we get a palindrome (25723244232752).

The spelling of 13400004232321 in words is "thirteen trillion, four hundred billion, four million, two hundred thirty-two thousand, three hundred twenty-one".