211312111303 has 16 divisors (see below), whose sum is σ = 215165099520. Its totient is φ = 207480800736.

The previous prime is 211312111259. The next prime is 211312111337. The reversal of 211312111303 is 303111213112.

It is a cyclic number.

It is not a de Polignac number, because 211312111303 - 2⁹ = 211312110791 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 (211312111903) 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, 29889253 + ... + 29896321.

It is an arithmetic number, because the mean of its divisors is an integer number (13447818720).

Almost surely, 2^211312111303 is an apocalyptic number.

211312111303 is a deficient number, since it is larger than the sum of its proper divisors (3852988217).

211312111303 is an equidigital number, since it uses as much as digits as its factorization.

211312111303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211312111303 its reverse (303111213112), we get a palindrome (514423324415).

The spelling of 211312111303 in words is "two hundred eleven billion, three hundred twelve million, one hundred eleven thousand, three hundred three".