10011091001 has 2 divisors, whose sum is σ = 10011091002. Its totient is φ = 10011091000.

The previous prime is 10011090997. The next prime is 10011091003. The reversal of 10011091001 is 10019011001.

It is a happy number.

10011091001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8157702400 + 1853388601 = 90320^2 + 43051^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011091001 - 2² = 10011090997 is a prime.

Together with 10011091003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10011091003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005545500 + 5005545501.

It is an arithmetic number, because the mean of its divisors is an integer number (5005545501).

Almost surely, 2^10011091001 is an apocalyptic number.

It is an amenable number.

10011091001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011091001 is an equidigital number, since it uses as much as digits as its factorization.

10011091001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 14.

The spelling of 10011091001 in words is "ten billion, eleven million, ninety-one thousand, one".