210000111011 has 4 divisors (see below), whose sum is σ = 211099588224. Its totient is φ = 208900633800.

The previous prime is 210000110993. The next prime is 210000111017. The reversal of 210000111011 is 110111000012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210000111011 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 210000111011.

It is not an unprimeable number, because it can be changed into a prime (210000111017) 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, 549738320 + ... + 549738701.

It is an arithmetic number, because the mean of its divisors is an integer number (52774897056).

Almost surely, 2^210000111011 is an apocalyptic number.

210000111011 is a deficient number, since it is larger than the sum of its proper divisors (1099477213).

210000111011 is a wasteful number, since it uses less digits than its factorization.

210000111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099477212.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 210000111011 its reverse (110111000012), we get a palindrome (320111111023).

The spelling of 210000111011 in words is "two hundred ten billion, one hundred eleven thousand, eleven".