12012308547 has 8 divisors (see below), whose sum is σ = 16209380544. Its totient is φ = 7911721128.

The previous prime is 12012308533. The next prime is 12012308557. The reversal of 12012308547 is 74580321021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12012308547 - 2⁴ = 12012308531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012308507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24120853 + ... + 24121350.

It is an arithmetic number, because the mean of its divisors is an integer number (2026172568).

Almost surely, 2^12012308547 is an apocalyptic number.

12012308547 is a deficient number, since it is larger than the sum of its proper divisors (4197071997).

12012308547 is an equidigital number, since it uses as much as digits as its factorization.

12012308547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48242289.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 12012308547 its reverse (74580321021), we get a palindrome (86592629568).

The spelling of 12012308547 in words is "twelve billion, twelve million, three hundred eight thousand, five hundred forty-seven".