12100030309 has 4 divisors (see below), whose sum is σ = 12118732704. Its totient is φ = 12081327916.

The previous prime is 12100030297. The next prime is 12100030321. The reversal of 12100030309 is 90303000121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90303000121 = 75479 ⋅1196399.

It is an interprime number because it is at equal distance from previous prime (12100030297) and next prime (12100030321).

It is a cyclic number.

It is not a de Polignac number, because 12100030309 - 2¹¹ = 12100028261 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 (12100030909) 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, 9350227 + ... + 9351520.

It is an arithmetic number, because the mean of its divisors is an integer number (3029683176).

Almost surely, 2^12100030309 is an apocalyptic number.

It is an amenable number.

12100030309 is a deficient number, since it is larger than the sum of its proper divisors (18702395).

12100030309 is an equidigital number, since it uses as much as digits as its factorization.

12100030309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18702394.

The product of its (nonzero) digits is 162, while the sum is 19.

The spelling of 12100030309 in words is "twelve billion, one hundred million, thirty thousand, three hundred nine".