212546123343 has 48 divisors (see below), whose sum is σ = 325188864000. Its totient is φ = 133545271104.

The previous prime is 212546123299. The next prime is 212546123347. The reversal of 212546123343 is 343321645212.

212546123343 is a `hidden beast` number, since 2 + 1 + 2 + 5 + 4 + 612 + 3 + 34 + 3 = 666.

It is not a de Polignac number, because 212546123343 - 2¹⁷ = 212545992271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212546123298 and 212546123307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212546123347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21082978 + ... + 21093056.

It is an arithmetic number, because the mean of its divisors is an integer number (6774768000).

Almost surely, 2^212546123343 is an apocalyptic number.

212546123343 is a deficient number, since it is larger than the sum of its proper divisors (112642740657).

212546123343 is a wasteful number, since it uses less digits than its factorization.

212546123343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12036 (or 12033 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 212546123343 its reverse (343321645212), we get a palindrome (555867768555).

The spelling of 212546123343 in words is "two hundred twelve billion, five hundred forty-six million, one hundred twenty-three thousand, three hundred forty-three".