12503313044 has 24 divisors (see below), whose sum is σ = 22082955048. Its totient is φ = 6193940480.

The previous prime is 12503313029. The next prime is 12503313059. The reversal of 12503313044 is 44031330521.

It is an interprime number because it is at equal distance from previous prime (12503313029) and next prime (12503313059).

It can be written as a sum of positive squares in 4 ways, for example, as 3861379600 + 8641933444 = 62140^2 + 92962^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995164 + ... + 2001420.

It is an arithmetic number, because the mean of its divisors is an integer number (920123127).

Almost surely, 2^12503313044 is an apocalyptic number.

It is an amenable number.

12503313044 is a deficient number, since it is larger than the sum of its proper divisors (9579642004).

12503313044 is a wasteful number, since it uses less digits than its factorization.

12503313044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795 (or 10793 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 12503313044 its reverse (44031330521), we get a palindrome (56534643565).

The spelling of 12503313044 in words is "twelve billion, five hundred three million, three hundred thirteen thousand, forty-four".