12031203301230 has 128 divisors (see below), whose sum is σ = 30385878893568. Its totient is φ = 3044901307392.

The previous prime is 12031203301217. The next prime is 12031203301231. The reversal of 12031203301230 is 3210330213021.

It is a junction number, because it is equal to n+sod(n) for n = 12031203301197 and 12031203301206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031203301231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35293762 + ... + 35633018.

It is an arithmetic number, because the mean of its divisors is an integer number (237389678856).

Almost surely, 2^{12031203301230} is an apocalyptic number.

12031203301230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031203301230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15192939446784).

12031203301230 is an abundant number, since it is smaller than the sum of its proper divisors (18354675592338).

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

12031203301230 is a wasteful number, since it uses less digits than its factorization.

12031203301230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340090.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12031203301230 its reverse (3210330213021), we get a palindrome (15241533514251).

The spelling of 12031203301230 in words is "twelve trillion, thirty-one billion, two hundred three million, three hundred one thousand, two hundred thirty".