10000010091901 has 2 divisors, whose sum is σ = 10000010091902. Its totient is φ = 10000010091900.

The previous prime is 10000010091857. The next prime is 10000010091949. The reversal of 10000010091901 is 10919001000001.

10000010091901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8957007466276 + 1043002625625 = 2992826^2 + 1021275^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000010091901 - 2⁹ = 10000010091389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10000010091101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000005045950 + 5000005045951.

It is an arithmetic number, because the mean of its divisors is an integer number (5000005045951).

Almost surely, 2^{10000010091901} is an apocalyptic number.

It is an amenable number.

10000010091901 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000010091901 is an equidigital number, since it uses as much as digits as its factorization.

10000010091901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 22.

Adding to 10000010091901 its reverse (10919001000001), we get a palindrome (20919011091902).

The spelling of 10000010091901 in words is "ten trillion, ten million, ninety-one thousand, nine hundred one".