212003013 has 4 divisors (see below), whose sum is σ = 282670688. Its totient is φ = 141335340.

The previous prime is 212003009. The next prime is 212003027. The reversal of 212003013 is 310300212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212003013 - 2² = 212003009 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 212003013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212003093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35333833 + ... + 35333838.

It is an arithmetic number, because the mean of its divisors is an integer number (70667672).

Almost surely, 2^212003013 is an apocalyptic number.

It is an amenable number.

212003013 is a deficient number, since it is larger than the sum of its proper divisors (70667675).

212003013 is an equidigital number, since it uses as much as digits as its factorization.

212003013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70667674.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 212003013 is about 14560.3232450382. The cubic root of 212003013 is about 596.2760205584.

Adding to 212003013 its reverse (310300212), we get a palindrome (522303225).

The spelling of 212003013 in words is "two hundred twelve million, three thousand, thirteen".