212311003 has 2 divisors, whose sum is σ = 212311004. Its totient is φ = 212311002.

The previous prime is 212310991. The next prime is 212311019. The reversal of 212311003 is 300113212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212311003 is a prime.

It is not a weakly prime, because it can be changed into another prime (212311093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106155501 + 106155502.

It is an arithmetic number, because the mean of its divisors is an integer number (106155502).

Almost surely, 2^212311003 is an apocalyptic number.

212311003 is a deficient number, since it is larger than the sum of its proper divisors (1).

212311003 is an equidigital number, since it uses as much as digits as its factorization.

212311003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 212311003 is about 14570.8957514629. The cubic root of 212311003 is about 596.5646299651.

Adding to 212311003 its reverse (300113212), we get a palindrome (512424215).

The spelling of 212311003 in words is "two hundred twelve million, three hundred eleven thousand, three".