1000091090091 has 8 divisors (see below), whose sum is σ = 1333460117824. Its totient is φ = 666724727880.

The previous prime is 1000091090041. The next prime is 1000091090093. The reversal of 1000091090091 is 1900901900001.

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

It is not a de Polignac number, because 1000091090091 - 2¹⁷ = 1000090959019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000091090093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501456 + ... + 1500546.

It is an arithmetic number, because the mean of its divisors is an integer number (166682514728).

Almost surely, 2^{1000091090091} is an apocalyptic number.

1000091090091 is a deficient number, since it is larger than the sum of its proper divisors (333369027733).

1000091090091 is an equidigital number, since it uses as much as digits as its factorization.

1000091090091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332761.

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

Adding to 1000091090091 its reverse (1900901900001), we get a palindrome (2900992990092).

The spelling of 1000091090091 in words is "one trillion, ninety-one million, ninety thousand, ninety-one".