201170709893 has 2 divisors, whose sum is σ = 201170709894. Its totient is φ = 201170709892.

The previous prime is 201170709889. The next prime is 201170709911. The reversal of 201170709893 is 398907071102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138371352289 + 62799357604 = 371983^2 + 250598^2 .

It is a cyclic number.

It is not a de Polignac number, because 201170709893 - 2² = 201170709889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201170709853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100585354946 + 100585354947.

It is an arithmetic number, because the mean of its divisors is an integer number (100585354947).

Almost surely, 2^201170709893 is an apocalyptic number.

It is an amenable number.

201170709893 is a deficient number, since it is larger than the sum of its proper divisors (1).

201170709893 is an equidigital number, since it uses as much as digits as its factorization.

201170709893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 201170709893 in words is "two hundred one billion, one hundred seventy million, seven hundred nine thousand, eight hundred ninety-three".