13423515330321 has 48 divisors (see below), whose sum is σ = 20826587471040. Its totient is φ = 8305459493760.

The previous prime is 13423515330287. The next prime is 13423515330341. The reversal of 13423515330321 is 12303351532431.

13423515330321 is a `hidden beast` number, since 1 + 3 + 42 + 3 + 51 + 533 + 0 + 32 + 1 = 666.

It is not a de Polignac number, because 13423515330321 - 2⁶ = 13423515330257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13423515330341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4870270 + ... + 7111016.

It is an arithmetic number, because the mean of its divisors is an integer number (433887238980).

Almost surely, 2^{13423515330321} is an apocalyptic number.

It is an amenable number.

13423515330321 is a deficient number, since it is larger than the sum of its proper divisors (7403072140719).

13423515330321 is a wasteful number, since it uses less digits than its factorization.

13423515330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241486 (or 2241483 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

Adding to 13423515330321 its reverse (12303351532431), we get a palindrome (25726866862752).

The spelling of 13423515330321 in words is "thirteen trillion, four hundred twenty-three billion, five hundred fifteen million, three hundred thirty thousand, three hundred twenty-one".