204115531203671 has 2 divisors, whose sum is σ = 204115531203672. Its totient is φ = 204115531203670.

The previous prime is 204115531203593. The next prime is 204115531203679. The reversal of 204115531203671 is 176302135511402.

204115531203671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204115531203671 - 2³⁰ = 204114457461847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204115531203679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102057765601835 + 102057765601836.

It is an arithmetic number, because the mean of its divisors is an integer number (102057765601836).

Almost surely, 2^{204115531203671} is an apocalyptic number.

204115531203671 is a deficient number, since it is larger than the sum of its proper divisors (1).

204115531203671 is an equidigital number, since it uses as much as digits as its factorization.

204115531203671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 204115531203671 in words is "two hundred four trillion, one hundred fifteen billion, five hundred thirty-one million, two hundred three thousand, six hundred seventy-one".