212320212303 has 4 divisors (see below), whose sum is σ = 283093616408.
Its totient is φ = 141546808200.
The previous prime is 212320212289. The next prime is 212320212341. The reversal of 212320212303 is 303212023212.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 212320212303 - 24 = 212320212287 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 212320212303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212320212383) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35386702048 + ... + 35386702053.
It is an arithmetic number, because the mean of its divisors is an integer number (70773404102).
Almost surely, 2212320212303 is an apocalyptic number.
212320212303 is a deficient number, since it is larger than the sum of its proper divisors (70773404105).
212320212303 is an equidigital number, since it uses as much as digits as its factorization.
212320212303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70773404104.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 212320212303 its reverse (303212023212), we get a palindrome (515532235515).
The spelling of 212320212303 in words is "two hundred twelve billion, three hundred twenty million, two hundred twelve thousand, three hundred three".