213443403311 has 8 divisors (see below), whose sum is σ = 219798339024. Its totient is φ = 207151701120.

The previous prime is 213443403203. The next prime is 213443403319. The reversal of 213443403311 is 113304344312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213443403311 - 2¹⁰ = 213443402287 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 (213443403319) 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, 15801530 + ... + 15815031.

It is an arithmetic number, because the mean of its divisors is an integer number (27474792378).

Almost surely, 2^213443403311 is an apocalyptic number.

213443403311 is a deficient number, since it is larger than the sum of its proper divisors (6354935713).

213443403311 is a wasteful number, since it uses less digits than its factorization.

213443403311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31616761.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 213443403311 its reverse (113304344312), we get a palindrome (326747747623).

The spelling of 213443403311 in words is "two hundred thirteen billion, four hundred forty-three million, four hundred three thousand, three hundred eleven".