12546212043 has 4 divisors (see below), whose sum is σ = 16728282728. Its totient is φ = 8364141360.

The previous prime is 12546211987. The next prime is 12546212051. The reversal of 12546212043 is 34021264521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12546212043 - 2²⁶ = 12479103179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12546212043.

It is not an unprimeable number, because it can be changed into a prime (12546212843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091035338 + ... + 2091035343.

It is an arithmetic number, because the mean of its divisors is an integer number (4182070682).

Almost surely, 2^12546212043 is an apocalyptic number.

12546212043 is a deficient number, since it is larger than the sum of its proper divisors (4182070685).

12546212043 is an equidigital number, since it uses as much as digits as its factorization.

12546212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182070684.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 12546212043 its reverse (34021264521), we get a palindrome (46567476564).

The spelling of 12546212043 in words is "twelve billion, five hundred forty-six million, two hundred twelve thousand, forty-three".