12120352125 has 48 divisors (see below), whose sum is σ = 23461079616. Its totient is φ = 5540724000.

The previous prime is 12120352109. The next prime is 12120352157. The reversal of 12120352125 is 52125302121.

It is not a de Polignac number, because 12120352125 - 2⁴ = 12120352109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120352095 and 12120352104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311431 + ... + 348180.

It is an arithmetic number, because the mean of its divisors is an integer number (488772492).

Almost surely, 2^12120352125 is an apocalyptic number.

12120352125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12120352125 is a deficient number, since it is larger than the sum of its proper divisors (11340727491).

12120352125 is an equidigital number, since it uses as much as digits as its factorization.

12120352125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659643 (or 659626 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12120352125 its reverse (52125302121), we get a palindrome (64245654246).

The spelling of 12120352125 in words is "twelve billion, one hundred twenty million, three hundred fifty-two thousand, one hundred twenty-five".