12131023055 has 16 divisors (see below), whose sum is σ = 15239038464. Its totient is φ = 9252994080.

The previous prime is 12131023049. The next prime is 12131023057. The reversal of 12131023055 is 55032013121.

It is a happy number.

12131023055 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 12131023055 - 2¹² = 12131018959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 12131023055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131023057) 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 15 ways as a sum of consecutive naturals, for example, 133829 + ... + 205358.

It is an arithmetic number, because the mean of its divisors is an integer number (952439904).

Almost surely, 2^12131023055 is an apocalyptic number.

12131023055 is a deficient number, since it is larger than the sum of its proper divisors (3108015409).

12131023055 is a wasteful number, since it uses less digits than its factorization.

12131023055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339526.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12131023055 its reverse (55032013121), we get a palindrome (67163036176).

The spelling of 12131023055 in words is "twelve billion, one hundred thirty-one million, twenty-three thousand, fifty-five".