211012111003 has 2 divisors, whose sum is σ = 211012111004. Its totient is φ = 211012111002.

The previous prime is 211012110983. The next prime is 211012111061. The reversal of 211012111003 is 300111210112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211012111003 - 2⁵ = 211012110971 is a prime.

It is a super-2 number, since 2×211012111003² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211012111403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105506055501 + 105506055502.

It is an arithmetic number, because the mean of its divisors is an integer number (105506055502).

Almost surely, 2^211012111003 is an apocalyptic number.

211012111003 is a deficient number, since it is larger than the sum of its proper divisors (1).

211012111003 is an equidigital number, since it uses as much as digits as its factorization.

211012111003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211012111003 its reverse (300111210112), we get a palindrome (511123321115).

The spelling of 211012111003 in words is "two hundred eleven billion, twelve million, one hundred eleven thousand, three".