12503200000 has 108 divisors (see below), whose sum is σ = 31196948580. Its totient is φ = 5000960000.

The previous prime is 12503199991. The next prime is 12503200009. The reversal of 12503200000 is 230521.

It is an interprime number because it is at equal distance from previous prime (12503199991) and next prime (12503200009).

It can be written as a sum of positive squares in 6 ways, for example, as 5977145344 + 6526054656 = 77312^2 + 80784^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503200009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792186 + ... + 807814.

It is an arithmetic number, because the mean of its divisors is an integer number (288860635).

Almost surely, 2^12503200000 is an apocalyptic number.

12503200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12503200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15598474290).

12503200000 is an abundant number, since it is smaller than the sum of its proper divisors (18693748580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12503200000 is an frugal number, since it uses more digits than its factorization.

12503200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15670 (or 15636 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

Adding to 12503200000 its reverse (230521), we get a palindrome (12503430521).

The spelling of 12503200000 in words is "twelve billion, five hundred three million, two hundred thousand".