1002111112109 has 16 divisors (see below), whose sum is σ = 1116946615680. Its totient is φ = 893489149440.

The previous prime is 1002111112103. The next prime is 1002111112183. The reversal of 1002111112109 is 9012111112001.

It is a cyclic number.

It is not a de Polignac number, because 1002111112109 - 2³⁶ = 933391635373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002111112103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12635312 + ... + 12714374.

It is an arithmetic number, because the mean of its divisors is an integer number (69809163480).

Almost surely, 2^{1002111112109} is an apocalyptic number.

1002111112109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1002111112109 is a deficient number, since it is larger than the sum of its proper divisors (114835503571).

1002111112109 is a wasteful number, since it uses less digits than its factorization.

1002111112109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118340.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1002111112109 in words is "one trillion, two billion, one hundred eleven million, one hundred twelve thousand, one hundred nine".