212012321323 has 16 divisors (see below), whose sum is σ = 244906558560. Its totient is φ = 181389568000.

The previous prime is 212012321303. The next prime is 212012321327. The reversal of 212012321323 is 323123210212.

It is a cyclic number.

It is not a de Polignac number, because 212012321323 - 2²⁵ = 211978766891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212012321294 and 212012321303.

It is not an unprimeable number, because it can be changed into a prime (212012321327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4526223 + ... + 4572823.

It is an arithmetic number, because the mean of its divisors is an integer number (15306659910).

Almost surely, 2^212012321323 is an apocalyptic number.

212012321323 is a deficient number, since it is larger than the sum of its proper divisors (32894237237).

212012321323 is a wasteful number, since it uses less digits than its factorization.

212012321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70958.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212012321323 its reverse (323123210212), we get a palindrome (535135531535).

Subtracting 212012321323 from its reverse (323123210212), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 212012 and 321323, that added together give a palindrome (533335).

The spelling of 212012321323 in words is "two hundred twelve billion, twelve million, three hundred twenty-one thousand, three hundred twenty-three".