12015405203 has 4 divisors (see below), whose sum is σ = 12015852600. Its totient is φ = 12014957808.

The previous prime is 12015405187. The next prime is 12015405209. The reversal of 12015405203 is 30250451021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12015405203 - 2⁴ = 12015405187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12015405209) 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, 180653 + ... + 238046.

It is an arithmetic number, because the mean of its divisors is an integer number (3003963150).

Almost surely, 2^12015405203 is an apocalyptic number.

12015405203 is a deficient number, since it is larger than the sum of its proper divisors (447397).

12015405203 is an equidigital number, since it uses as much as digits as its factorization.

12015405203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447396.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12015405203 its reverse (30250451021), we get a palindrome (42265856224).

The spelling of 12015405203 in words is "twelve billion, fifteen million, four hundred five thousand, two hundred three".