213040313111 has 4 divisors (see below), whose sum is σ = 213066664752. Its totient is φ = 213013961472.

The previous prime is 213040313099. The next prime is 213040313183. The reversal of 213040313111 is 111313040312.

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 213040313111 - 2¹⁰ = 213040312087 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 (213040313191) 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, 13163690 + ... + 13179863.

It is an arithmetic number, because the mean of its divisors is an integer number (53266666188).

Almost surely, 2^213040313111 is an apocalyptic number.

213040313111 is a deficient number, since it is larger than the sum of its proper divisors (26351641).

213040313111 is an equidigital number, since it uses as much as digits as its factorization.

213040313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26351640.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213040313111 its reverse (111313040312), we get a palindrome (324353353423).

The spelling of 213040313111 in words is "two hundred thirteen billion, forty million, three hundred thirteen thousand, one hundred eleven".