213011102111 has 4 divisors (see below), whose sum is σ = 213018275400. Its totient is φ = 213003928824.

The previous prime is 213011102039. The next prime is 213011102137. The reversal of 213011102111 is 111201110312.

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 213011102111 - 2³⁰ = 211937360287 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 (213011102191) 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, 3541916 + ... + 3601553.

It is an arithmetic number, because the mean of its divisors is an integer number (53254568850).

Almost surely, 2^213011102111 is an apocalyptic number.

213011102111 is a deficient number, since it is larger than the sum of its proper divisors (7173289).

213011102111 is an equidigital number, since it uses as much as digits as its factorization.

213011102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173288.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 213011102111 its reverse (111201110312), we get a palindrome (324212212423).

The spelling of 213011102111 in words is "two hundred thirteen billion, eleven million, one hundred two thousand, one hundred eleven".