12103099969 has 4 divisors (see below), whose sum is σ = 12815047044. Its totient is φ = 11391152896.

The previous prime is 12103099937. The next prime is 12103099999. The reversal of 12103099969 is 96999030121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96999030121 = 7 ⋅13857004303.

It can be written as a sum of positive squares in 2 ways, for example, as 6274540944 + 5828559025 = 79212^2 + 76345^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103099969 - 2⁵ = 12103099937 is a prime.

It is a super-2 number, since 2×12103099969² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103099999) 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, 355973512 + ... + 355973545.

It is an arithmetic number, because the mean of its divisors is an integer number (3203761761).

Almost surely, 2^12103099969 is an apocalyptic number.

It is an amenable number.

12103099969 is a deficient number, since it is larger than the sum of its proper divisors (711947075).

12103099969 is an equidigital number, since it uses as much as digits as its factorization.

12103099969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711947074.

The product of its (nonzero) digits is 236196, while the sum is 49.

The spelling of 12103099969 in words is "twelve billion, one hundred three million, ninety-nine thousand, nine hundred sixty-nine".