12123012003 has 8 divisors (see below), whose sum is σ = 16192728768. Its totient is φ = 8067651624.

The previous prime is 12123011941. The next prime is 12123012007. The reversal of 12123012003 is 30021032121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12123012003 - 2¹² = 12123007907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123012007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3587125 + ... + 3590502.

It is an arithmetic number, because the mean of its divisors is an integer number (2024091096).

Almost surely, 2^12123012003 is an apocalyptic number.

12123012003 is a deficient number, since it is larger than the sum of its proper divisors (4069716765).

12123012003 is an equidigital number, since it uses as much as digits as its factorization.

12123012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7178193.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12123012003 its reverse (30021032121), we get a palindrome (42144044124).

The spelling of 12123012003 in words is "twelve billion, one hundred twenty-three million, twelve thousand, three".