212001312311 has 4 divisors (see below), whose sum is σ = 216931575432. Its totient is φ = 207071049192.

The previous prime is 212001312307. The next prime is 212001312319. The reversal of 212001312311 is 113213100212.

212001312311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212001312311 - 2² = 212001312307 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 212001312311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001312319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2465131496 + ... + 2465131581.

It is an arithmetic number, because the mean of its divisors is an integer number (54232893858).

Almost surely, 2^212001312311 is an apocalyptic number.

212001312311 is a deficient number, since it is larger than the sum of its proper divisors (4930263121).

212001312311 is an equidigital number, since it uses as much as digits as its factorization.

212001312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930263120.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212001312311 its reverse (113213100212), we get a palindrome (325214412523).

The spelling of 212001312311 in words is "two hundred twelve billion, one million, three hundred twelve thousand, three hundred eleven".