12503320000 has 70 divisors (see below), whose sum is σ = 31004269208. Its totient is φ = 5001312000.

The previous prime is 12503319991. The next prime is 12503320001. The reversal of 12503320000 is 2330521.

It is a super-2 number, since 2×12503320000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503320001) 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 9 ways as a sum of consecutive naturals, for example, 116292 + ... + 196291.

Almost surely, 2^12503320000 is an apocalyptic number.

12503320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12503320000 is an abundant number, since it is smaller than the sum of its proper divisors (18500949208).

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

12503320000 is an frugal number, since it uses more digits than its factorization.

12503320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312615 (or 312590 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 12503320000 its reverse (2330521), we get a palindrome (12505650521).

The spelling of 12503320000 in words is "twelve billion, five hundred three million, three hundred twenty thousand".