12155124411 has 8 divisors (see below), whose sum is σ = 18007591760. Its totient is φ = 8103416256.

The previous prime is 12155124361. The next prime is 12155124413. The reversal of 12155124411 is 11442155121.

12155124411 is a `hidden beast` number, since 1 + 215 + 5 + 1 + 2 + 441 + 1 = 666.

12155124411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12155124411 - 2⁶ = 12155124347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 450189793 = 12155124411 / (1 + 2 + 1 + 5 + 5 + 1 + 2 + 4 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12155124413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225094870 + ... + 225094923.

It is an arithmetic number, because the mean of its divisors is an integer number (2250948970).

Almost surely, 2^12155124411 is an apocalyptic number.

12155124411 is a deficient number, since it is larger than the sum of its proper divisors (5852467349).

12155124411 is an equidigital number, since it uses as much as digits as its factorization.

12155124411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450189802 (or 450189796 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

Adding to 12155124411 its reverse (11442155121), we get a palindrome (23597279532).

The spelling of 12155124411 in words is "twelve billion, one hundred fifty-five million, one hundred twenty-four thousand, four hundred eleven".