201279048317 has 2 divisors, whose sum is σ = 201279048318. Its totient is φ = 201279048316.

The previous prime is 201279048277. The next prime is 201279048359. The reversal of 201279048317 is 713840972102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201124443961 + 154604356 = 448469^2 + 12434^2 .

It is a cyclic number.

It is not a de Polignac number, because 201279048317 - 2¹⁶ = 201278982781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201279048617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100639524158 + 100639524159.

It is an arithmetic number, because the mean of its divisors is an integer number (100639524159).

Almost surely, 2^201279048317 is an apocalyptic number.

It is an amenable number.

201279048317 is a deficient number, since it is larger than the sum of its proper divisors (1).

201279048317 is an equidigital number, since it uses as much as digits as its factorization.

201279048317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 201279048317 in words is "two hundred one billion, two hundred seventy-nine million, forty-eight thousand, three hundred seventeen".