101009091009 has 8 divisors (see below), whose sum is σ = 134715430080. Its totient is φ = 67321072976.

The previous prime is 101009090977. The next prime is 101009091011. The reversal of 101009091009 is 900190900101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101009091009 - 2⁵ = 101009090977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101009091049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567389 + ... + 4589450.

It is an arithmetic number, because the mean of its divisors is an integer number (16839428760).

Almost surely, 2^101009091009 is an apocalyptic number.

It is an amenable number.

101009091009 is a deficient number, since it is larger than the sum of its proper divisors (33706339071).

101009091009 is an equidigital number, since it uses as much as digits as its factorization.

101009091009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160519.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 101009091009 in words is "one hundred one billion, nine million, ninety-one thousand, nine".