211203001231 has 2 divisors, whose sum is σ = 211203001232. Its totient is φ = 211203001230.

The previous prime is 211203001213. The next prime is 211203001237. The reversal of 211203001231 is 132100302112.

211203001231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (211203001213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211203001231 - 2⁵ = 211203001199 is a prime.

It is a super-2 number, since 2×211203001231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211203001237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105601500615 + 105601500616.

It is an arithmetic number, because the mean of its divisors is an integer number (105601500616).

Almost surely, 2^211203001231 is an apocalyptic number.

211203001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

211203001231 is an equidigital number, since it uses as much as digits as its factorization.

211203001231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211203001231 its reverse (132100302112), we get a palindrome (343303303343).

The spelling of 211203001231 in words is "two hundred eleven billion, two hundred three million, one thousand, two hundred thirty-one".