12505343000 has 128 divisors (see below), whose sum is σ = 29647088640. Its totient is φ = 4936960000.

The previous prime is 12505342979. The next prime is 12505343009. The reversal of 12505343000 is 34350521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505343009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44502860 + ... + 44503140.

It is an arithmetic number, because the mean of its divisors is an integer number (231617880).

Almost surely, 2^12505343000 is an apocalyptic number.

12505343000 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 12505343000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14823544320).

12505343000 is an abundant number, since it is smaller than the sum of its proper divisors (17141745640).

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

12505343000 is a wasteful number, since it uses less digits than its factorization.

12505343000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 12505343000 its reverse (34350521), we get a palindrome (12539693521).

The spelling of 12505343000 in words is "twelve billion, five hundred five million, three hundred forty-three thousand".