203133123211 has 2 divisors, whose sum is σ = 203133123212. Its totient is φ = 203133123210.

The previous prime is 203133123191. The next prime is 203133123239. The reversal of 203133123211 is 112321331302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203133123211 is a prime.

It is not a weakly prime, because it can be changed into another prime (203133123251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101566561605 + 101566561606.

It is an arithmetic number, because the mean of its divisors is an integer number (101566561606).

Almost surely, 2^203133123211 is an apocalyptic number.

203133123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

203133123211 is an equidigital number, since it uses as much as digits as its factorization.

203133123211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203133123211 its reverse (112321331302), we get a palindrome (315454454513).

The spelling of 203133123211 in words is "two hundred three billion, one hundred thirty-three million, one hundred twenty-three thousand, two hundred eleven".