213513223310321 has 8 divisors (see below), whose sum is σ = 240437178156288. Its totient is φ = 187841545434000.

The previous prime is 213513223310293. The next prime is 213513223310327. The reversal of 213513223310321 is 123013322315312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213513223310321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213513223310327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313069242050 + ... + 313069242731.

It is an arithmetic number, because the mean of its divisors is an integer number (30054647269536).

Almost surely, 2^{213513223310321} is an apocalyptic number.

It is an amenable number.

213513223310321 is a deficient number, since it is larger than the sum of its proper divisors (26923954845967).

213513223310321 is a wasteful number, since it uses less digits than its factorization.

213513223310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626138484823.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 213513223310321 its reverse (123013322315312), we get a palindrome (336526545625633).

The spelling of 213513223310321 in words is "two hundred thirteen trillion, five hundred thirteen billion, two hundred twenty-three million, three hundred ten thousand, three hundred twenty-one".