12012397047 has 24 divisors (see below), whose sum is σ = 20996460576. Its totient is φ = 6460448256.

The previous prime is 12012397043. The next prime is 12012397079. The reversal of 12012397047 is 74079321021.

It is not a de Polignac number, because 12012397047 - 2² = 12012397043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012397043) 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 23 ways as a sum of consecutive naturals, for example, 5606958 + ... + 5609099.

It is an arithmetic number, because the mean of its divisors is an integer number (874852524).

Almost surely, 2^12012397047 is an apocalyptic number.

12012397047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12012397047 is a deficient number, since it is larger than the sum of its proper divisors (8984063529).

12012397047 is a wasteful number, since it uses less digits than its factorization.

12012397047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11216087 (or 11216084 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 12012397047 in words is "twelve billion, twelve million, three hundred ninety-seven thousand, forty-seven".