205071634622131 has 2 divisors, whose sum is σ = 205071634622132. Its totient is φ = 205071634622130.

The previous prime is 205071634622051. The next prime is 205071634622203. The reversal of 205071634622131 is 131226436170502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205071634622131 - 2³⁷ = 204934195668659 is a prime.

It is a super-2 number, since 2×205071634622131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205771634622131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102535817311065 + 102535817311066.

It is an arithmetic number, because the mean of its divisors is an integer number (102535817311066).

Almost surely, 2^{205071634622131} is an apocalyptic number.

205071634622131 is a deficient number, since it is larger than the sum of its proper divisors (1).

205071634622131 is an equidigital number, since it uses as much as digits as its factorization.

205071634622131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 205071634622131 in words is "two hundred five trillion, seventy-one billion, six hundred thirty-four million, six hundred twenty-two thousand, one hundred thirty-one".