212312103311 has 16 divisors (see below), whose sum is σ = 264716536320. Its totient is φ = 165428170080.

The previous prime is 212312103293. The next prime is 212312103317. The reversal of 212312103311 is 113301213212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212312103311 - 2⁶ = 212312103247 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 (212312103317) 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, 1393430 + ... + 1538268.

It is an arithmetic number, because the mean of its divisors is an integer number (16544783520).

Almost surely, 2^212312103311 is an apocalyptic number.

212312103311 is a deficient number, since it is larger than the sum of its proper divisors (52404433009).

212312103311 is a wasteful number, since it uses less digits than its factorization.

212312103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163894.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212312103311 its reverse (113301213212), we get a palindrome (325613316523).

The spelling of 212312103311 in words is "two hundred twelve billion, three hundred twelve million, one hundred three thousand, three hundred eleven".