212072303 has 4 divisors (see below), whose sum is σ = 213423240. Its totient is φ = 210721368.

The previous prime is 212072299. The next prime is 212072309. The reversal of 212072303 is 303270212.

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 212072303 - 2² = 212072299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212072309) 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, 675233 + ... + 675546.

It is an arithmetic number, because the mean of its divisors is an integer number (53355810).

Almost surely, 2^212072303 is an apocalyptic number.

212072303 is a deficient number, since it is larger than the sum of its proper divisors (1350937).

212072303 is a wasteful number, since it uses less digits than its factorization.

212072303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350936.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 212072303 is about 14562.7024621119. The cubic root of 212072303 is about 596.3409747691.

The spelling of 212072303 in words is "two hundred twelve million, seventy-two thousand, three hundred three".