102120000001109 has 4 divisors (see below), whose sum is σ = 102120243741516. Its totient is φ = 102119756260704.

The previous prime is 102120000001099. The next prime is 102120000001303. The reversal of 102120000001109 is 901100000021201.

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 35809189510084 + 66310810491025 = 5984078^2 + 8143145^2 .

It is a cyclic number.

It is not a de Polignac number, because 102120000001109 - 2⁸ = 102120000000853 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 (102120000009109) 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, 121240664 + ... + 122080049.

It is an arithmetic number, because the mean of its divisors is an integer number (25530060935379).

Almost surely, 2^{102120000001109} is an apocalyptic number.

It is an amenable number.

102120000001109 is a deficient number, since it is larger than the sum of its proper divisors (243740407).

102120000001109 is an equidigital number, since it uses as much as digits as its factorization.

102120000001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243740406.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 102120000001109 in words is "one hundred two trillion, one hundred twenty billion, one thousand, one hundred nine".