12551443003 has 4 divisors (see below), whose sum is σ = 13692483288. Its totient is φ = 11410402720.

The previous prime is 12551442983. The next prime is 12551443007. The reversal of 12551443003 is 30034415521.

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

It is a cyclic number.

It is not a de Polignac number, because 12551443003 - 2⁵ = 12551442971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12551443007) 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, 570520126 + ... + 570520147.

It is an arithmetic number, because the mean of its divisors is an integer number (3423120822).

Almost surely, 2^12551443003 is an apocalyptic number.

12551443003 is a deficient number, since it is larger than the sum of its proper divisors (1141040285).

12551443003 is a wasteful number, since it uses less digits than its factorization.

12551443003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141040284.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 12551443003 its reverse (30034415521), we get a palindrome (42585858524).

It can be divided in two parts, 12551 and 443003, that added together give a palindrome (455554).

The spelling of 12551443003 in words is "twelve billion, five hundred fifty-one million, four hundred forty-three thousand, three".