203043231191 has 2 divisors, whose sum is σ = 203043231192. Its totient is φ = 203043231190.

The previous prime is 203043231107. The next prime is 203043231217. The reversal of 203043231191 is 191132340302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203043231191 - 2¹⁸ = 203042969047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203043233191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101521615595 + 101521615596.

It is an arithmetic number, because the mean of its divisors is an integer number (101521615596).

Almost surely, 2^203043231191 is an apocalyptic number.

203043231191 is a deficient number, since it is larger than the sum of its proper divisors (1).

203043231191 is an equidigital number, since it uses as much as digits as its factorization.

203043231191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 203043231191 its reverse (191132340302), we get a palindrome (394175571493).

The spelling of 203043231191 in words is "two hundred three billion, forty-three million, two hundred thirty-one thousand, one hundred ninety-one".