12531042225104 has 20 divisors (see below), whose sum is σ = 26146501566276. Its totient is φ = 5783557949952.

The previous prime is 12531042225083. The next prime is 12531042225109. The reversal of 12531042225104 is 40152224013521.

It can be written as a sum of positive squares in 2 ways, for example, as 2509689640000 + 10021352585104 = 1584200^2 + 3165652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12531042225109) 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, 30122697449 + ... + 30122697864.

Almost surely, 2^{12531042225104} is an apocalyptic number.

It is an amenable number.

12531042225104 is an abundant number, since it is smaller than the sum of its proper divisors (13615459341172).

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

12531042225104 is a wasteful number, since it uses less digits than its factorization.

12531042225104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60245395334 (or 60245395328 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 12531042225104 its reverse (40152224013521), we get a palindrome (52683266238625).

The spelling of 12531042225104 in words is "twelve trillion, five hundred thirty-one billion, forty-two million, two hundred twenty-five thousand, one hundred four".