12530120112 has 60 divisors (see below), whose sum is σ = 35428487640. Its totient is φ = 4133643264.

The previous prime is 12530120081. The next prime is 12530120117. The reversal of 12530120112 is 21102103521.

12530120112 is a `hidden beast` number, since 1 + 2 + 530 + 1 + 20 + 112 = 666.

It is a super-2 number, since 2×12530120112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12530120117) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 434562 + ... + 462497.

It is an arithmetic number, because the mean of its divisors is an integer number (590474794).

Almost surely, 2^12530120112 is an apocalyptic number.

12530120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12530120112 is an abundant number, since it is smaller than the sum of its proper divisors (22898367528).

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

12530120112 is a wasteful number, since it uses less digits than its factorization.

12530120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897170 (or 897161 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12530120112 its reverse (21102103521), we get a palindrome (33632223633).

The spelling of 12530120112 in words is "twelve billion, five hundred thirty million, one hundred twenty thousand, one hundred twelve".