210011230111 has 4 divisors (see below), whose sum is σ = 213454037224. Its totient is φ = 206568423000.

The previous prime is 210011230109. The next prime is 210011230129. The reversal of 210011230111 is 111032110012.

It is a happy number.

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 210011230111 - 2¹ = 210011230109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210011230091 and 210011230100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011200111) 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, 1721403465 + ... + 1721403586.

It is an arithmetic number, because the mean of its divisors is an integer number (53363509306).

Almost surely, 2^210011230111 is an apocalyptic number.

210011230111 is a deficient number, since it is larger than the sum of its proper divisors (3442807113).

210011230111 is an equidigital number, since it uses as much as digits as its factorization.

210011230111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442807112.

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

Adding to 210011230111 its reverse (111032110012), we get a palindrome (321043340123).

The spelling of 210011230111 in words is "two hundred ten billion, eleven million, two hundred thirty thousand, one hundred eleven".