212340003 has 16 divisors (see below), whose sum is σ = 292423680. Its totient is φ = 136951776.

The previous prime is 212339983. The next prime is 212340017. The reversal of 212340003 is 300043212.

It is not a de Polignac number, because 212340003 - 2⁵ = 212339971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212340053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14526 + ... + 25212.

It is an arithmetic number, because the mean of its divisors is an integer number (18276480).

Almost surely, 2^212340003 is an apocalyptic number.

212340003 is a deficient number, since it is larger than the sum of its proper divisors (80083677).

212340003 is a wasteful number, since it uses less digits than its factorization.

212340003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212340003 is about 14571.8908519107. The cubic root of 212340003 is about 596.5917907283.

Adding to 212340003 its reverse (300043212), we get a palindrome (512383215).

The spelling of 212340003 in words is "two hundred twelve million, three hundred forty thousand, three".