12012123231300 has 36 divisors (see below), whose sum is σ = 34755076550096. Its totient is φ = 3203232861600.

The previous prime is 12012123231299. The next prime is 12012123231343. The reversal of 12012123231300 is 313232121021.

It is a super-2 number, since 2×12012123231300² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20020205086 + ... + 20020205685.

Almost surely, 2^{12012123231300} is an apocalyptic number.

12012123231300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012123231300 is an abundant number, since it is smaller than the sum of its proper divisors (22742953318796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12012123231300 is a wasteful number, since it uses less digits than its factorization.

12012123231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40040410788 (or 40040410781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12012123231300 its reverse (313232121021), we get a palindrome (12325355352321).

The spelling of 12012123231300 in words is "twelve trillion, twelve billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred".