213011020111 has 8 divisors (see below), whose sum is σ = 214776867584. Its totient is φ = 211252308120.

The previous prime is 213011020091. The next prime is 213011020127. The reversal of 213011020111 is 111020110312.

It is a happy number.

213011020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213011020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213011020091 and 213011020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213011020141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1723911 + ... + 1843336.

It is an arithmetic number, because the mean of its divisors is an integer number (26847108448).

Almost surely, 2^213011020111 is an apocalyptic number.

213011020111 is a deficient number, since it is larger than the sum of its proper divisors (1765847473).

213011020111 is a wasteful number, since it uses less digits than its factorization.

213011020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567741.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 213011020111 its reverse (111020110312), we get a palindrome (324031130423).

The spelling of 213011020111 in words is "two hundred thirteen billion, eleven million, twenty thousand, one hundred eleven".