12478313211 has 32 divisors (see below), whose sum is σ = 21367557120. Its totient is φ = 6295791744.

The previous prime is 12478313189. The next prime is 12478313219. The reversal of 12478313211 is 11231387421.

It is not a de Polignac number, because 12478313211 - 2⁷ = 12478313083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12478313219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 987376 + ... + 999933.

It is an arithmetic number, because the mean of its divisors is an integer number (667736160).

Almost surely, 2^12478313211 is an apocalyptic number.

12478313211 is a deficient number, since it is larger than the sum of its proper divisors (8889243909).

12478313211 is a wasteful number, since it uses less digits than its factorization.

12478313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987355.

The product of its digits is 8064, while the sum is 33.

The spelling of 12478313211 in words is "twelve billion, four hundred seventy-eight million, three hundred thirteen thousand, two hundred eleven".