1001011100099 has 4 divisors (see below), whose sum is σ = 1001134888464. Its totient is φ = 1000887311736.

The previous prime is 1001011100081. The next prime is 1001011100267. The reversal of 1001011100099 is 9900011101001.

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 1001011100099 - 2¹⁶ = 1001011034563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001041100099) 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, 61882052 + ... + 61898225.

It is an arithmetic number, because the mean of its divisors is an integer number (250283722116).

Almost surely, 2^{1001011100099} is an apocalyptic number.

1001011100099 is a deficient number, since it is larger than the sum of its proper divisors (123788365).

1001011100099 is an equidigital number, since it uses as much as digits as its factorization.

1001011100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123788364.

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

The spelling of 1001011100099 in words is "one trillion, one billion, eleven million, one hundred thousand, ninety-nine".