101000909091 has 8 divisors (see below), whose sum is σ = 134989283520. Its totient is φ = 67173237032.

The previous prime is 101000909059. The next prime is 101000909117. The reversal of 101000909091 is 190909000101.

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 101000909091 - 2⁵ = 101000909059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101000909021) 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, 40174125 + ... + 40176638.

It is an arithmetic number, because the mean of its divisors is an integer number (16873660440).

Almost surely, 2^101000909091 is an apocalyptic number.

101000909091 is a deficient number, since it is larger than the sum of its proper divisors (33988374429).

101000909091 is an equidigital number, since it uses as much as digits as its factorization.

101000909091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80351185.

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

Adding to 101000909091 its reverse (190909000101), we get a palindrome (291909909192).

The spelling of 101000909091 in words is "one hundred one billion, nine hundred nine thousand, ninety-one".