13340040430321 has 16 divisors (see below), whose sum is σ = 15203646475200. Its totient is φ = 11593194424000.

The previous prime is 13340040430313. The next prime is 13340040430331. The reversal of 13340040430321 is 12303404004331.

It is a cyclic number.

It is not a de Polignac number, because 13340040430321 - 2³ = 13340040430313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13340040430321.

It is not an unprimeable number, because it can be changed into a prime (13340040430331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206989111 + ... + 207053548.

It is an arithmetic number, because the mean of its divisors is an integer number (950227904700).

Almost surely, 2^{13340040430321} is an apocalyptic number.

13340040430321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13340040430321 is a deficient number, since it is larger than the sum of its proper divisors (1863606044879).

13340040430321 is a wasteful number, since it uses less digits than its factorization.

13340040430321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414042800.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13340040430321 its reverse (12303404004331), we get a palindrome (25643444434652).

The spelling of 13340040430321 in words is "thirteen trillion, three hundred forty billion, forty million, four hundred thirty thousand, three hundred twenty-one".