211311214305 has 16 divisors (see below), whose sum is σ = 338110880064. Its totient is φ = 112695001920.

The previous prime is 211311214291. The next prime is 211311214343. The reversal of 211311214305 is 503412113112.

It is not a de Polignac number, because 211311214305 - 2⁶ = 211311214241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157362 + ... + 668868.

It is an arithmetic number, because the mean of its divisors is an integer number (21131930004).

Almost surely, 2^211311214305 is an apocalyptic number.

It is an amenable number.

211311214305 is a deficient number, since it is larger than the sum of its proper divisors (126799665759).

211311214305 is a wasteful number, since it uses less digits than its factorization.

211311214305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539056.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 211311214305 its reverse (503412113112), we get a palindrome (714723327417).

The spelling of 211311214305 in words is "two hundred eleven billion, three hundred eleven million, two hundred fourteen thousand, three hundred five".