1000919091101 has 2 divisors, whose sum is σ = 1000919091102. Its totient is φ = 1000919091100.

The previous prime is 1000919091091. The next prime is 1000919091131. The reversal of 1000919091101 is 1011909190001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872120647876 + 128798443225 = 933874^2 + 358885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000919091101 - 2¹⁰ = 1000919090077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000919091131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500459545550 + 500459545551.

It is an arithmetic number, because the mean of its divisors is an integer number (500459545551).

Almost surely, 2^{1000919091101} is an apocalyptic number.

It is an amenable number.

1000919091101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000919091101 is an equidigital number, since it uses as much as digits as its factorization.

1000919091101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 1000919091101 in words is "one trillion, nine hundred nineteen million, ninety-one thousand, one hundred one".