231203102130000 has 4800 divisors, whose sum is σ = 1125218814720000. Its totient is φ = 42751825920000.

The previous prime is 231203102129977. The next prime is 231203102130001. The reversal of 231203102130000 is 31201302132.

231203102130000 is a `hidden beast` number, since 2 + 31 + 2 + 0 + 310 + 21 + 300 + 0 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231203102130001) by changing a digit.

It is a polite number, since it can be written in 959 ways as a sum of consecutive naturals, for example, 463332869751 + ... + 463332870249.

It is an arithmetic number, because the mean of its divisors is an integer number (234420586400).

Almost surely, 2^{231203102130000} is an apocalyptic number.

231203102130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231203102130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562609407360000).

231203102130000 is an abundant number, since it is smaller than the sum of its proper divisors (894015712590000).

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

231203102130000 is a wasteful number, since it uses less digits than its factorization.

231203102130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231203102130000 its reverse (31201302132), we get a palindrome (231234303432132).

The spelling of 231203102130000 in words is "two hundred thirty-one trillion, two hundred three billion, one hundred two million, one hundred thirty thousand".