212320703 has 16 divisors (see below), whose sum is σ = 248818176. Its totient is φ = 177409440.

The previous prime is 212320699. The next prime is 212320711. The reversal of 212320703 is 307023212.

It is a cyclic number.

It is not a de Polignac number, because 212320703 - 2² = 212320699 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 (212320403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58718 + ... + 62228.

It is an arithmetic number, because the mean of its divisors is an integer number (15551136).

Almost surely, 2^212320703 is an apocalyptic number.

212320703 is a deficient number, since it is larger than the sum of its proper divisors (36497473).

212320703 is a wasteful number, since it uses less digits than its factorization.

212320703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734.

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

The square root of 212320703 is about 14571.2286029696. The cubic root of 212320703 is about 596.5737150474.

Adding to 212320703 its reverse (307023212), we get a palindrome (519343915).

The spelling of 212320703 in words is "two hundred twelve million, three hundred twenty thousand, seven hundred three".