1112002120109 has 4 divisors (see below), whose sum is σ = 1114803133404. Its totient is φ = 1109201106816.

The previous prime is 1112002120093. The next prime is 1112002120127. The reversal of 1112002120109 is 9010212002111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442750506025 + 669251614084 = 665395^2 + 818078^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112002120109 - 2⁴ = 1112002120093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112002122109) 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, 1400506052 + ... + 1400506845.

It is an arithmetic number, because the mean of its divisors is an integer number (278700783351).

Almost surely, 2^{1112002120109} is an apocalyptic number.

It is an amenable number.

1112002120109 is a deficient number, since it is larger than the sum of its proper divisors (2801013295).

1112002120109 is an equidigital number, since it uses as much as digits as its factorization.

1112002120109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801013294.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1112002120109 in words is "one trillion, one hundred twelve billion, two million, one hundred twenty thousand, one hundred nine".