12103204993 has 4 divisors (see below), whose sum is σ = 13203496368. Its totient is φ = 11002913620.

The previous prime is 12103204987. The next prime is 12103205003. The reversal of 12103204993 is 39940230121.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103204993 is a prime.

It is a super-2 number, since 2×12103204993² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103204913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550145671 + ... + 550145692.

It is an arithmetic number, because the mean of its divisors is an integer number (3300874092).

Almost surely, 2^12103204993 is an apocalyptic number.

It is an amenable number.

12103204993 is a deficient number, since it is larger than the sum of its proper divisors (1100291375).

12103204993 is a wasteful number, since it uses less digits than its factorization.

12103204993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100291374.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 12103204993 in words is "twelve billion, one hundred three million, two hundred four thousand, nine hundred ninety-three".