1001100920091 has 4 divisors (see below), whose sum is σ = 1334801226792. Its totient is φ = 667400613392.

The previous prime is 1001100920087. The next prime is 1001100920101. The reversal of 1001100920091 is 1900290011001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1001100920091 - 2² = 1001100920087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001100920891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166850153346 + ... + 166850153351.

It is an arithmetic number, because the mean of its divisors is an integer number (333700306698).

Almost surely, 2^{1001100920091} is an apocalyptic number.

1001100920091 is a deficient number, since it is larger than the sum of its proper divisors (333700306701).

1001100920091 is an equidigital number, since it uses as much as digits as its factorization.

1001100920091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333700306700.

The product of its (nonzero) digits is 162, while the sum is 24.

Adding to 1001100920091 its reverse (1900290011001), we get a palindrome (2901390931092).

The spelling of 1001100920091 in words is "one trillion, one billion, one hundred million, nine hundred twenty thousand, ninety-one".