10201201009 has 2 divisors, whose sum is σ = 10201201010. Its totient is φ = 10201201008.

The previous prime is 10201201007. The next prime is 10201201027. The reversal of 10201201009 is 90010210201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6416490609 + 3784710400 = 80103^2 + 61520^2 .

It is an emirp because it is prime and its reverse (90010210201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10201201009 - 2¹ = 10201201007 is a prime.

Together with 10201201007, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10201200983 and 10201201001.

It is not a weakly prime, because it can be changed into another prime (10201201007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100600504 + 5100600505.

It is an arithmetic number, because the mean of its divisors is an integer number (5100600505).

Almost surely, 2^10201201009 is an apocalyptic number.

It is an amenable number.

10201201009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10201201009 is an equidigital number, since it uses as much as digits as its factorization.

10201201009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 10201201009 in words is "ten billion, two hundred one million, two hundred one thousand, nine".