12318405147 has 48 divisors (see below), whose sum is σ = 18905097120. Its totient is φ = 7707571200.

The previous prime is 12318405097. The next prime is 12318405149. The reversal of 12318405147 is 74150481321.

12318405147 is a `hidden beast` number, since 1 + 231 + 8 + 405 + 14 + 7 = 666.

It is not a de Polignac number, because 12318405147 - 2⁷ = 12318405019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12318405149) 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, 10429897 + ... + 10431077.

It is an arithmetic number, because the mean of its divisors is an integer number (393856190).

Almost surely, 2^12318405147 is an apocalyptic number.

12318405147 is a deficient number, since it is larger than the sum of its proper divisors (6586691973).

12318405147 is a wasteful number, since it uses less digits than its factorization.

12318405147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

Adding to 12318405147 its reverse (74150481321), we get a palindrome (86468886468).

The spelling of 12318405147 in words is "twelve billion, three hundred eighteen million, four hundred five thousand, one hundred forty-seven".