203130111211 has 2 divisors, whose sum is σ = 203130111212. Its totient is φ = 203130111210.

The previous prime is 203130111193. The next prime is 203130111227. The reversal of 203130111211 is 112111031302.

It is a happy number.

It is an a-pointer prime, because the next prime (203130111227) can be obtained adding 203130111211 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203130111211 - 2¹⁹ = 203129586923 is a prime.

It is not a weakly prime, because it can be changed into another prime (203130111271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565055605 + 101565055606.

It is an arithmetic number, because the mean of its divisors is an integer number (101565055606).

Almost surely, 2^203130111211 is an apocalyptic number.

203130111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130111211 is an equidigital number, since it uses as much as digits as its factorization.

203130111211 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 16.

Adding to 203130111211 its reverse (112111031302), we get a palindrome (315241142513).

The spelling of 203130111211 in words is "two hundred three billion, one hundred thirty million, one hundred eleven thousand, two hundred eleven".