12530002120 has 16 divisors (see below), whose sum is σ = 28192504860. Its totient is φ = 5012000832.

The previous prime is 12530002117. The next prime is 12530002129. The reversal of 12530002120 is 2120003521.

It can be written as a sum of positive squares in 2 ways, for example, as 12450542724 + 79459396 = 111582^2 + 8914^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12530002094 and 12530002103.

It is not an unprimeable number, because it can be changed into a prime (12530002129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156624987 + ... + 156625066.

Almost surely, 2^12530002120 is an apocalyptic number.

12530002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12530002120 is an abundant number, since it is smaller than the sum of its proper divisors (15662502740).

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

12530002120 is a wasteful number, since it uses less digits than its factorization.

12530002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313250064 (or 313250060 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 12530002120 its reverse (2120003521), we get a palindrome (14650005641).

The spelling of 12530002120 in words is "twelve billion, five hundred thirty million, two thousand, one hundred twenty".