18120512324 has 12 divisors (see below), whose sum is σ = 31825378284. Its totient is φ = 9027547104.

The previous prime is 18120512321. The next prime is 18120512339. The reversal of 18120512324 is 42321502181.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8494940224 + 9625572100 = 92168^2 + 98110^2 .

It is not an unprimeable number, because it can be changed into a prime (18120512321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8176019 + ... + 8178234.

It is an arithmetic number, because the mean of its divisors is an integer number (2652114857).

Almost surely, 2^18120512324 is an apocalyptic number.

It is an amenable number.

18120512324 is a deficient number, since it is larger than the sum of its proper divisors (13704865960).

18120512324 is a wasteful number, since it uses less digits than its factorization.

18120512324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16354534 (or 16354532 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 18120512324 in words is "eighteen billion, one hundred twenty million, five hundred twelve thousand, three hundred twenty-four".