1001111111099 has 32 divisors (see below), whose sum is σ = 1126663603200. Its totient is φ = 881852400000.

The previous prime is 1001111111089. The next prime is 1001111111107. The reversal of 1001111111099 is 9901111111001.

It is not a de Polignac number, because 1001111111099 - 2¹⁶ = 1001111045563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001111111029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13449314 + ... + 13523544.

It is an arithmetic number, because the mean of its divisors is an integer number (35208237600).

Almost surely, 2^{1001111111099} is an apocalyptic number.

1001111111099 is a deficient number, since it is larger than the sum of its proper divisors (125552492101).

1001111111099 is a wasteful number, since it uses less digits than its factorization.

1001111111099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74603.

The product of its (nonzero) digits is 81, while the sum is 26.

The spelling of 1001111111099 in words is "one trillion, one billion, one hundred eleven million, one hundred eleven thousand, ninety-nine".