201020371670401 has 2 divisors, whose sum is σ = 201020371670402. Its totient is φ = 201020371670400.

The previous prime is 201020371670347. The next prime is 201020371670411. The reversal of 201020371670401 is 104076173020102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192060766242801 + 8959605427600 = 13858599^2 + 2993260^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020371670401 - 2⁴⁷ = 60282883315073 is a prime.

It is not a weakly prime, because it can be changed into another prime (201020371670411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510185835200 + 100510185835201.

It is an arithmetic number, because the mean of its divisors is an integer number (100510185835201).

Almost surely, 2^{201020371670401} is an apocalyptic number.

It is an amenable number.

201020371670401 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020371670401 is an equidigital number, since it uses as much as digits as its factorization.

201020371670401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 201020371670401 in words is "two hundred one trillion, twenty billion, three hundred seventy-one million, six hundred seventy thousand, four hundred one".