212031003 has 8 divisors (see below), whose sum is σ = 282848848. Its totient is φ = 141283584.

The previous prime is 212030989. The next prime is 212031011. The reversal of 212031003 is 300130212.

It is a happy number.

212031003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212031003 - 2⁵ = 212030971 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 212031003.

It is not an unprimeable number, because it can be changed into a prime (212032003) 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, 10126 + ... + 22947.

It is an arithmetic number, because the mean of its divisors is an integer number (35356106).

Almost surely, 2^212031003 is an apocalyptic number.

212031003 is a deficient number, since it is larger than the sum of its proper divisors (70817845).

212031003 is a wasteful number, since it uses less digits than its factorization.

212031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35213.

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

The square root of 212031003 is about 14561.2843870312. The cubic root of 212031003 is about 596.3022608008.

Adding to 212031003 its reverse (300130212), we get a palindrome (512161215).

The spelling of 212031003 in words is "two hundred twelve million, thirty-one thousand, three".