213030023311 has 4 divisors (see below), whose sum is σ = 243462883792. Its totient is φ = 182597162832.

The previous prime is 213030023303. The next prime is 213030023333. The reversal of 213030023311 is 113320030312.

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

It is not a de Polignac number, because 213030023311 - 2³ = 213030023303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213030023111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15216430230 + ... + 15216430243.

It is an arithmetic number, because the mean of its divisors is an integer number (60865720948).

Almost surely, 2^213030023311 is an apocalyptic number.

213030023311 is a deficient number, since it is larger than the sum of its proper divisors (30432860481).

213030023311 is an equidigital number, since it uses as much as digits as its factorization.

213030023311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30432860480.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 213030023311 its reverse (113320030312), we get a palindrome (326350053623).

The spelling of 213030023311 in words is "two hundred thirteen billion, thirty million, twenty-three thousand, three hundred eleven".