213322321011 has 4 divisors (see below), whose sum is σ = 284429761352. Its totient is φ = 142214880672.

The previous prime is 213322321007. The next prime is 213322321027. The reversal of 213322321011 is 110123223312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 213322321011 - 2² = 213322321007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213322321711) 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, 35553720166 + ... + 35553720171.

It is an arithmetic number, because the mean of its divisors is an integer number (71107440338).

Almost surely, 2^213322321011 is an apocalyptic number.

213322321011 is a deficient number, since it is larger than the sum of its proper divisors (71107440341).

213322321011 is an equidigital number, since it uses as much as digits as its factorization.

213322321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71107440340.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213322321011 its reverse (110123223312), we get a palindrome (323445544323).

The spelling of 213322321011 in words is "two hundred thirteen billion, three hundred twenty-two million, three hundred twenty-one thousand, eleven".