12351554503 has 4 divisors (see below), whose sum is σ = 12410092888. Its totient is φ = 12293016120.

The previous prime is 12351554491. The next prime is 12351554543. The reversal of 12351554503 is 30545515321.

12351554503 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, and also an emirpimes, since its reverse is a distinct semiprime: 30545515321 = 523 ⋅58404427.

It is a cyclic number.

It is not a de Polignac number, because 12351554503 - 2²⁹ = 11814683591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12351554543) 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 3 ways as a sum of consecutive naturals, for example, 29268876 + ... + 29269297.

It is an arithmetic number, because the mean of its divisors is an integer number (3102523222).

Almost surely, 2^12351554503 is an apocalyptic number.

12351554503 is a deficient number, since it is larger than the sum of its proper divisors (58538385).

12351554503 is an equidigital number, since it uses as much as digits as its factorization.

12351554503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58538384.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 12351554503 in words is "twelve billion, three hundred fifty-one million, five hundred fifty-four thousand, five hundred three".