12072003 has 4 divisors (see below), whose sum is σ = 16096008. Its totient is φ = 8048000.

The previous prime is 12072001. The next prime is 12072007. The reversal of 12072003 is 30027021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30027021 = 3 ⋅10009007.

It is a cyclic number.

It is not a de Polignac number, because 12072003 - 2¹ = 12072001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12072001) 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, 2011998 + ... + 2012003.

It is an arithmetic number, because the mean of its divisors is an integer number (4024002).

Almost surely, 2^12072003 is an apocalyptic number.

12072003 is a deficient number, since it is larger than the sum of its proper divisors (4024005).

12072003 is an equidigital number, since it uses as much as digits as its factorization.

12072003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024004.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 12072003 is about 3474.4788098361. The cubic root of 12072003 is about 229.3998404793.

Adding to 12072003 its reverse (30027021), we get a palindrome (42099024).

The spelling of 12072003 in words is "twelve million, seventy-two thousand, three".