212136346323 has 24 divisors (see below), whose sum is σ = 335171694000. Its totient is φ = 128222775360.

The previous prime is 212136346291. The next prime is 212136346337. The reversal of 212136346323 is 323643631212.

212136346323 is a `hidden beast` number, since 2 + 1 + 2 + 13 + 6 + 3 + 4 + 632 + 3 = 666.

212136346323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212136346323 - 2⁵ = 212136346291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212136341323) 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 23 ways as a sum of consecutive naturals, for example, 2835448 + ... + 2909301.

It is an arithmetic number, because the mean of its divisors is an integer number (13965487250).

Almost surely, 2^212136346323 is an apocalyptic number.

212136346323 is a deficient number, since it is larger than the sum of its proper divisors (123035347677).

212136346323 is a wasteful number, since it uses less digits than its factorization.

212136346323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745139 (or 5745136 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

Adding to 212136346323 its reverse (323643631212), we get a palindrome (535779977535).

The spelling of 212136346323 in words is "two hundred twelve billion, one hundred thirty-six million, three hundred forty-six thousand, three hundred twenty-three".