212101231323 has 16 divisors (see below), whose sum is σ = 299451672576. Its totient is φ = 133076618880.

The previous prime is 212101231271. The next prime is 212101231333. The reversal of 212101231323 is 323132101212.

It is not a de Polignac number, because 212101231323 - 2⁶ = 212101231259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212101231323.

It is not an unprimeable number, because it can be changed into a prime (212101231333) 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, 1086490 + ... + 1266752.

It is an arithmetic number, because the mean of its divisors is an integer number (18715729536).

Almost surely, 2^212101231323 is an apocalyptic number.

212101231323 is a deficient number, since it is larger than the sum of its proper divisors (87350441253).

212101231323 is a wasteful number, since it uses less digits than its factorization.

212101231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203354.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212101231323 its reverse (323132101212), we get a palindrome (535233332535).

The spelling of 212101231323 in words is "two hundred twelve billion, one hundred one million, two hundred thirty-one thousand, three hundred twenty-three".