101000000091 has 8 divisors (see below), whose sum is σ = 134701925904. Its totient is φ = 67315703840.

The previous prime is 101000000083. The next prime is 101000000099. The reversal of 101000000091 is 190000000101.

It is an interprime number because it is at equal distance from previous prime (101000000083) and next prime (101000000099).

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 101000000091 - 2³ = 101000000083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101000000099) 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, 4394016 + ... + 4416941.

It is an arithmetic number, because the mean of its divisors is an integer number (16837740738).

Almost surely, 2^101000000091 is an apocalyptic number.

101000000091 is a deficient number, since it is larger than the sum of its proper divisors (33701925813).

101000000091 is an equidigital number, since it uses as much as digits as its factorization.

101000000091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8814781.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 101000000091 its reverse (190000000101), we get a palindrome (291000000192).

The spelling of 101000000091 in words is "one hundred one billion, ninety-one", and thus it is an aban number.