12345124012 has 24 divisors (see below), whose sum is σ = 23271439856. Its totient is φ = 5696371008.

The previous prime is 12345124009. The next prime is 12345124013. The reversal of 12345124012 is 21042154321.

It is a super-4 number, since 4×12345124012⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12345124013) 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, 206638 + ... + 259594.

Almost surely, 2^12345124012 is an apocalyptic number.

It is an amenable number.

12345124012 is a deficient number, since it is larger than the sum of its proper divisors (10926315844).

12345124012 is a wasteful number, since it uses less digits than its factorization.

12345124012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57457 (or 57455 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12345124012 its reverse (21042154321), we get a palindrome (33387278333).

The spelling of 12345124012 in words is "twelve billion, three hundred forty-five million, one hundred twenty-four thousand, twelve".