212011343343 has 6 divisors (see below), whose sum is σ = 306238607064. Its totient is φ = 141340895556.

The previous prime is 212011343309. The next prime is 212011343363. The reversal of 212011343343 is 343343110212.

It is a happy number.

212011343343 is a `hidden beast` number, since 21 + 201 + 1 + 3 + 433 + 4 + 3 = 666.

It is not a de Polignac number, because 212011343343 - 2¹⁸ = 212011081199 is a prime.

It is a super-2 number, since 2×212011343343² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011343363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11778407955 + ... + 11778407972.

It is an arithmetic number, because the mean of its divisors is an integer number (51039767844).

Almost surely, 2^212011343343 is an apocalyptic number.

212011343343 is a deficient number, since it is larger than the sum of its proper divisors (94227263721).

212011343343 is a wasteful number, since it uses less digits than its factorization.

212011343343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23556815933 (or 23556815930 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 212011343343 its reverse (343343110212), we get a palindrome (555354453555).

The spelling of 212011343343 in words is "two hundred twelve billion, eleven million, three hundred forty-three thousand, three hundred forty-three".