12521243130 has 32 divisors (see below), whose sum is σ = 32782891968. Its totient is φ = 3035452800.

The previous prime is 12521243129. The next prime is 12521243131. The reversal of 12521243130 is 3134212521.

12521243130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12521243129) and next prime (12521243131).

It is a self number, because there is not a number n which added to its sum of digits gives 12521243130.

It is not an unprimeable number, because it can be changed into a prime (12521243131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18971251 + ... + 18971910.

It is an arithmetic number, because the mean of its divisors is an integer number (1024465374).

Almost surely, 2^12521243130 is an apocalyptic number.

12521243130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12521243130 is an abundant number, since it is smaller than the sum of its proper divisors (20261648838).

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

12521243130 is a wasteful number, since it uses less digits than its factorization.

12521243130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37943182.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12521243130 its reverse (3134212521), we get a palindrome (15655455651).

The spelling of 12521243130 in words is "twelve billion, five hundred twenty-one million, two hundred forty-three thousand, one hundred thirty".