12305505131252 has 48 divisors (see below), whose sum is σ = 21738014183424. Its totient is φ = 6094961964000.

The previous prime is 12305505131233. The next prime is 12305505131273. The reversal of 12305505131252 is 25213150550321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235788353 + ... + 235840535.

It is an arithmetic number, because the mean of its divisors is an integer number (452875295488).

Almost surely, 2^{12305505131252} is an apocalyptic number.

It is an amenable number.

12305505131252 is a deficient number, since it is larger than the sum of its proper divisors (9432509052172).

12305505131252 is a wasteful number, since it uses less digits than its factorization.

12305505131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53700 (or 53698 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 12305505131252 its reverse (25213150550321), we get a palindrome (37518655681573).

The spelling of 12305505131252 in words is "twelve trillion, three hundred five billion, five hundred five million, one hundred thirty-one thousand, two hundred fifty-two".