12530311350 has 48 divisors (see below), whose sum is σ = 31833118800. Its totient is φ = 3259916800.

The previous prime is 12530311333. The next prime is 12530311361. The reversal of 12530311350 is 5311303521.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12530311350.

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 23 ways as a sum of consecutive naturals, for example, 1012575 + ... + 1024874.

It is an arithmetic number, because the mean of its divisors is an integer number (663189975).

Almost surely, 2^12530311350 is an apocalyptic number.

12530311350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12530311350 is an abundant number, since it is smaller than the sum of its proper divisors (19302807450).

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

12530311350 is a wasteful number, since it uses less digits than its factorization.

12530311350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037505 (or 2037500 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 12530311350 its reverse (5311303521), we get a palindrome (17841614871).

The spelling of 12530311350 in words is "twelve billion, five hundred thirty million, three hundred eleven thousand, three hundred fifty".