1001101001099 has 4 divisors (see below), whose sum is σ = 1001601804000. Its totient is φ = 1000600198200.

The previous prime is 1001101001093. The next prime is 1001101001101. The reversal of 1001101001099 is 9901001011001.

It is a happy number.

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 1001101001099 - 2³² = 996806033803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001101001093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250398452 + ... + 250402449.

It is an arithmetic number, because the mean of its divisors is an integer number (250400451000).

Almost surely, 2^{1001101001099} is an apocalyptic number.

1001101001099 is a deficient number, since it is larger than the sum of its proper divisors (500802901).

1001101001099 is an equidigital number, since it uses as much as digits as its factorization.

1001101001099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500802900.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 1001101001099 in words is "one trillion, one billion, one hundred one million, one thousand, ninety-nine".