12315024520000 has 140 divisors (see below), whose sum is σ = 30560752553760. Its totient is φ = 4922219968000.

The previous prime is 12315024519989. The next prime is 12315024520013. The reversal of 12315024520000 is 2542051321.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 52162221 + ... + 52397779.

Almost surely, 2^{12315024520000} is an apocalyptic number.

12315024520000 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 12315024520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15280376276880).

12315024520000 is an abundant number, since it is smaller than the sum of its proper divisors (18245728033760).

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

12315024520000 is an equidigital number, since it uses as much as digits as its factorization.

12315024520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236898 (or 236873 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12315024520000 its reverse (2542051321), we get a palindrome (12317566571321).

The spelling of 12315024520000 in words is "twelve trillion, three hundred fifteen billion, twenty-four million, five hundred twenty thousand".