12403003142 has 4 divisors (see below), whose sum is σ = 18604504716. Its totient is φ = 6201501570.

The previous prime is 12403003139. The next prime is 12403003147. The reversal of 12403003142 is 24130030421.

12403003142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403003147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100750784 + ... + 3100750787.

It is an arithmetic number, because the mean of its divisors is an integer number (4651126179).

Almost surely, 2^12403003142 is an apocalyptic number.

12403003142 is a deficient number, since it is larger than the sum of its proper divisors (6201501574).

12403003142 is an equidigital number, since it uses as much as digits as its factorization.

12403003142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201501573.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12403003142 its reverse (24130030421), we get a palindrome (36533033563).

The spelling of 12403003142 in words is "twelve billion, four hundred three million, three thousand, one hundred forty-two".