1091019100101 has 8 divisors (see below), whose sum is σ = 1662505295424. Its totient is φ = 623439485760.

The previous prime is 1091019100051. The next prime is 1091019100103. The reversal of 1091019100101 is 1010019101901.

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

It is not a de Polignac number, because 1091019100101 - 2⁹ = 1091019099589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091019100103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25976645220 + ... + 25976645261.

It is an arithmetic number, because the mean of its divisors is an integer number (207813161928).

Almost surely, 2^{1091019100101} is an apocalyptic number.

It is an amenable number.

1091019100101 is a deficient number, since it is larger than the sum of its proper divisors (571486195323).

1091019100101 is an equidigital number, since it uses as much as digits as its factorization.

1091019100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51953290491.

The product of its (nonzero) digits is 81, while the sum is 24.

The spelling of 1091019100101 in words is "one trillion, ninety-one billion, nineteen million, one hundred thousand, one hundred one".