12154120441047 has 48 divisors (see below), whose sum is σ = 19173628656000. Its totient is φ = 7374227351040.

The previous prime is 12154120441037. The next prime is 12154120441147. The reversal of 12154120441047 is 74014402145121.

12154120441047 is a `hidden beast` number, since 1 + 2 + 1 + 54 + 120 + 441 + 0 + 47 = 666.

It is not a de Polignac number, because 12154120441047 - 2¹² = 12154120436951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154120441027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1961922 + ... + 5306352.

It is an arithmetic number, because the mean of its divisors is an integer number (399450597000).

Almost surely, 2^{12154120441047} is an apocalyptic number.

12154120441047 is a deficient number, since it is larger than the sum of its proper divisors (7019508214953).

12154120441047 is a wasteful number, since it uses less digits than its factorization.

12154120441047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344888 (or 3344885 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

Adding to 12154120441047 its reverse (74014402145121), we get a palindrome (86168522586168).

The spelling of 12154120441047 in words is "twelve trillion, one hundred fifty-four billion, one hundred twenty million, four hundred forty-one thousand, forty-seven".