213223013321 has 4 divisors (see below), whose sum is σ = 224445277200. Its totient is φ = 202000749444.

The previous prime is 213223013317. The next prime is 213223013323. The reversal of 213223013321 is 123310322312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213223013321 - 2² = 213223013317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213223013323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611131911 + ... + 5611131948.

It is an arithmetic number, because the mean of its divisors is an integer number (56111319300).

Almost surely, 2^213223013321 is an apocalyptic number.

It is an amenable number.

213223013321 is a deficient number, since it is larger than the sum of its proper divisors (11222263879).

213223013321 is a wasteful number, since it uses less digits than its factorization.

213223013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222263878.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213223013321 its reverse (123310322312), we get a palindrome (336533335633).

The spelling of 213223013321 in words is "two hundred thirteen billion, two hundred twenty-three million, thirteen thousand, three hundred twenty-one".