12010203123012 has 18 divisors (see below), whose sum is σ = 30359124561038. Its totient is φ = 4003401040992.

The previous prime is 12010203123011. The next prime is 12010203123031. The reversal of 12010203123012 is 21032130201021.

12010203123012 is a `hidden beast` number, since 1 + 20 + 10 + 20 + 312 + 301 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9473012886276 + 2537190236736 = 3077826^2 + 1592856^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12010203123011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166808376673 + ... + 166808376744.

Almost surely, 2^{12010203123012} is an apocalyptic number.

12010203123012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010203123012 is an abundant number, since it is smaller than the sum of its proper divisors (18348921438026).

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

12010203123012 is a wasteful number, since it uses less digits than its factorization.

12010203123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333616753427 (or 333616753422 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12010203123012 its reverse (21032130201021), we get a palindrome (33042333324033).

The spelling of 12010203123012 in words is "twelve trillion, ten billion, two hundred three million, one hundred twenty-three thousand, twelve".