12103100019 has 24 divisors (see below), whose sum is σ = 17672163600. Its totient is φ = 7981175808.

The previous prime is 12103100017. The next prime is 12103100021. The reversal of 12103100019 is 91000130121.

It is an interprime number because it is at equal distance from previous prime (12103100017) and next prime (12103100021).

It is not a de Polignac number, because 12103100019 - 2¹ = 12103100017 is a prime.

It is a super-2 number, since 2×12103100019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12103099974 and 12103100010.

It is not an unprimeable number, because it can be changed into a prime (12103100017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2659504 + ... + 2664050.

It is an arithmetic number, because the mean of its divisors is an integer number (736340150).

Almost surely, 2^12103100019 is an apocalyptic number.

12103100019 is a deficient number, since it is larger than the sum of its proper divisors (5569063581).

12103100019 is a wasteful number, since it uses less digits than its factorization.

12103100019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699 (or 7696 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The spelling of 12103100019 in words is "twelve billion, one hundred three million, one hundred thousand, nineteen".