212031021203 has 16 divisors (see below), whose sum is σ = 214903142496. Its totient is φ = 209177041920.

The previous prime is 212031021199. The next prime is 212031021313. The reversal of 212031021203 is 302120130212.

It is a cyclic number.

It is not a de Polignac number, because 212031021203 - 2² = 212031021199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212031021803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32215373 + ... + 32221953.

It is an arithmetic number, because the mean of its divisors is an integer number (13431446406).

Almost surely, 2^212031021203 is an apocalyptic number.

212031021203 is a deficient number, since it is larger than the sum of its proper divisors (2872121293).

212031021203 is a wasteful number, since it uses less digits than its factorization.

212031021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212031021203 its reverse (302120130212), we get a palindrome (514151151415).

The spelling of 212031021203 in words is "two hundred twelve billion, thirty-one million, twenty-one thousand, two hundred three".