12145214503 has 8 divisors (see below), whose sum is σ = 12538958336. Its totient is φ = 11751593400.

The previous prime is 12145214453. The next prime is 12145214531. The reversal of 12145214503 is 30541254121.

12145214503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12145214503 - 2²¹ = 12143117351 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12145214533) 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 in 7 ways as a sum of consecutive naturals, for example, 197488 + ... + 251578.

It is an arithmetic number, because the mean of its divisors is an integer number (1567369792).

Almost surely, 2^12145214503 is an apocalyptic number.

12145214503 is a deficient number, since it is larger than the sum of its proper divisors (393743833).

12145214503 is an equidigital number, since it uses as much as digits as its factorization.

12145214503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61365.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 12145214503 its reverse (30541254121), we get a palindrome (42686468624).

The spelling of 12145214503 in words is "twelve billion, one hundred forty-five million, two hundred fourteen thousand, five hundred three".