212434433311 has 4 divisors (see below), whose sum is σ = 212435975152. Its totient is φ = 212432891472.

The previous prime is 212434433257. The next prime is 212434433333. The reversal of 212434433311 is 113334434212.

212434433311 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 212434433311 - 2²³ = 212426044703 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 (212434433371) 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, 541491 + ... + 847396.

It is an arithmetic number, because the mean of its divisors is an integer number (53108993788).

Almost surely, 2^212434433311 is an apocalyptic number.

212434433311 is a deficient number, since it is larger than the sum of its proper divisors (1541841).

212434433311 is a wasteful number, since it uses less digits than its factorization.

212434433311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541840.

The product of its digits is 20736, while the sum is 31.

Adding to 212434433311 its reverse (113334434212), we get a palindrome (325768867523).

Subtracting from 212434433311 its reverse (113334434212), we obtain a palindrome (99099999099).

The spelling of 212434433311 in words is "two hundred twelve billion, four hundred thirty-four million, four hundred thirty-three thousand, three hundred eleven".