12131771025733 has 64 divisors (see below), whose sum is σ = 13623589324800. Its totient is φ = 10751889899520.

The previous prime is 12131771025727. The next prime is 12131771025757. The reversal of 12131771025733 is 33752017713121.

It is a de Polignac number, because none of the positive numbers 2^k-12131771025733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12131771025733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131771028733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 814369341 + ... + 814384237.

It is an arithmetic number, because the mean of its divisors is an integer number (212868583200).

Almost surely, 2^{12131771025733} is an apocalyptic number.

It is an amenable number.

12131771025733 is a deficient number, since it is larger than the sum of its proper divisors (1491818299067).

12131771025733 is a wasteful number, since it uses less digits than its factorization.

12131771025733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310.

The product of its (nonzero) digits is 185220, while the sum is 43.

Adding to 12131771025733 its reverse (33752017713121), we get a palindrome (45883788738854).

The spelling of 12131771025733 in words is "twelve trillion, one hundred thirty-one billion, seven hundred seventy-one million, twenty-five thousand, seven hundred thirty-three".