212013023111 has 16 divisors (see below), whose sum is σ = 215066839680. Its totient is φ = 208975092480.

The previous prime is 212013023077. The next prime is 212013023113. The reversal of 212013023111 is 111320310212.

It is a cyclic number.

It is not a de Polignac number, because 212013023111 - 2¹⁴ = 212013006727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212013023111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013023113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59872001 + ... + 59875541.

It is an arithmetic number, because the mean of its divisors is an integer number (13441677480).

Almost surely, 2^212013023111 is an apocalyptic number.

212013023111 is a deficient number, since it is larger than the sum of its proper divisors (3053816569).

212013023111 is a wasteful number, since it uses less digits than its factorization.

212013023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212013023111 its reverse (111320310212), we get a palindrome (323333333323).

The spelling of 212013023111 in words is "two hundred twelve billion, thirteen million, twenty-three thousand, one hundred eleven".