12525121630 has 16 divisors (see below), whose sum is σ = 25765964640. Its totient is φ = 4294327392.

The previous prime is 12525121601. The next prime is 12525121639. The reversal of 12525121630 is 3612152521.

12525121630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12525121630³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525121639) 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 7 ways as a sum of consecutive naturals, for example, 89465085 + ... + 89465224.

It is an arithmetic number, because the mean of its divisors is an integer number (1610372790).

Almost surely, 2^12525121630 is an apocalyptic number.

12525121630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12525121630 is an abundant number, since it is smaller than the sum of its proper divisors (13240843010).

12525121630 is a wasteful number, since it uses less digits than its factorization.

12525121630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178930323.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 12525121630 in words is "twelve billion, five hundred twenty-five million, one hundred twenty-one thousand, six hundred thirty".