213320031011 has 4 divisors (see below), whose sum is σ = 222594814992. Its totient is φ = 204045247032.

The previous prime is 213320030983. The next prime is 213320031019. The reversal of 213320031011 is 110130023312.

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

It is a cyclic number.

It is not a de Polignac number, because 213320031011 - 2¹⁸ = 213319768867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213320031019) 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, 4637391956 + ... + 4637392001.

It is an arithmetic number, because the mean of its divisors is an integer number (55648703748).

Almost surely, 2^213320031011 is an apocalyptic number.

213320031011 is a deficient number, since it is larger than the sum of its proper divisors (9274783981).

213320031011 is an equidigital number, since it uses as much as digits as its factorization.

213320031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9274783980.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 213320031011 its reverse (110130023312), we get a palindrome (323450054323).

The spelling of 213320031011 in words is "two hundred thirteen billion, three hundred twenty million, thirty-one thousand, eleven".