12125003623540 has 12 divisors (see below), whose sum is σ = 25462507609476. Its totient is φ = 4850001449408.

The previous prime is 12125003623529. The next prime is 12125003623553. The reversal of 12125003623540 is 4532630052121.

It can be written as a sum of positive squares in 2 ways, for example, as 1906023225744 + 10218980397796 = 1380588^2 + 3196714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12125003623496 and 12125003623505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303125090569 + ... + 303125090608.

It is an arithmetic number, because the mean of its divisors is an integer number (2121875634123).

Almost surely, 2^{12125003623540} is an apocalyptic number.

12125003623540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12125003623540 is an abundant number, since it is smaller than the sum of its proper divisors (13337503985936).

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

12125003623540 is a wasteful number, since it uses less digits than its factorization.

12125003623540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606250181186 (or 606250181184 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 12125003623540 its reverse (4532630052121), we get a palindrome (16657633675661).

The spelling of 12125003623540 in words is "twelve trillion, one hundred twenty-five billion, three million, six hundred twenty-three thousand, five hundred forty".