212311230210311 has 4 divisors (see below), whose sum is σ = 213388952191272. Its totient is φ = 211233508229352.

The previous prime is 212311230210271. The next prime is 212311230210353. The reversal of 212311230210311 is 113012032113212.

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 212311230210311 - 2²² = 212311226016007 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 (212311230215311) 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, 538860990185 + ... + 538860990578.

It is an arithmetic number, because the mean of its divisors is an integer number (53347238047818).

Almost surely, 2^{212311230210311} is an apocalyptic number.

212311230210311 is a deficient number, since it is larger than the sum of its proper divisors (1077721980961).

212311230210311 is a wasteful number, since it uses less digits than its factorization.

212311230210311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077721980960.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 212311230210311 its reverse (113012032113212), we get a palindrome (325323262323523).

The spelling of 212311230210311 in words is "two hundred twelve trillion, three hundred eleven billion, two hundred thirty million, two hundred ten thousand, three hundred eleven".