212118128303 has 8 divisors (see below), whose sum is σ = 224600699520. Its totient is φ = 199636116480.

The previous prime is 212118128297. The next prime is 212118128333. The reversal of 212118128303 is 303821811212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212118128303 - 2²⁴ = 212101351087 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 212118128303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212118128333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835103 + ... + 1059071.

It is an arithmetic number, because the mean of its divisors is an integer number (28075087440).

Almost surely, 2^212118128303 is an apocalyptic number.

212118128303 is a deficient number, since it is larger than the sum of its proper divisors (12482571217).

212118128303 is a wasteful number, since it uses less digits than its factorization.

212118128303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279697.

The product of its (nonzero) digits is 4608, while the sum is 32.

Adding to 212118128303 its reverse (303821811212), we get a palindrome (515939939515).

The spelling of 212118128303 in words is "two hundred twelve billion, one hundred eighteen million, one hundred twenty-eight thousand, three hundred three".