203112553253191 has 2 divisors, whose sum is σ = 203112553253192. Its totient is φ = 203112553253190.

The previous prime is 203112553253173. The next prime is 203112553253219. The reversal of 203112553253191 is 191352355211302.

203112553253191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203112553253191 - 2¹⁹ = 203112552728903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203112553253161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556276626595 + 101556276626596.

It is an arithmetic number, because the mean of its divisors is an integer number (101556276626596).

Almost surely, 2^{203112553253191} is an apocalyptic number.

203112553253191 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112553253191 is an equidigital number, since it uses as much as digits as its factorization.

203112553253191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 203112553253191 in words is "two hundred three trillion, one hundred twelve billion, five hundred fifty-three million, two hundred fifty-three thousand, one hundred ninety-one".