212102012323 has 4 divisors (see below), whose sum is σ = 212120828640. Its totient is φ = 212083196008.

The previous prime is 212102012293. The next prime is 212102012347. The reversal of 212102012323 is 323210201212.

212102012323 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 212102012323 - 2¹³ = 212102004131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212102012323.

It is not an unprimeable number, because it can be changed into a prime (212102012723) 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, 9391240 + ... + 9413797.

It is an arithmetic number, because the mean of its divisors is an integer number (53030207160).

Almost surely, 2^212102012323 is an apocalyptic number.

212102012323 is a deficient number, since it is larger than the sum of its proper divisors (18816317).

212102012323 is a wasteful number, since it uses less digits than its factorization.

212102012323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816316.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212102012323 its reverse (323210201212), we get a palindrome (535312213535).

The spelling of 212102012323 in words is "two hundred twelve billion, one hundred two million, twelve thousand, three hundred twenty-three".