2131212031230 has 32 divisors (see below), whose sum is σ = 5145537083904. Its totient is φ = 564920074016.

The previous prime is 2131212031219. The next prime is 2131212031259. The reversal of 2131212031230 is 321302121312.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2131212031197 and 2131212031206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212690802 + ... + 212700821.

It is an arithmetic number, because the mean of its divisors is an integer number (160798033872).

Almost surely, 2^{2131212031230} is an apocalyptic number.

2131212031230 is an abundant number, since it is smaller than the sum of its proper divisors (3014325052674).

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

2131212031230 is a wasteful number, since it uses less digits than its factorization.

2131212031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425391800.

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

Adding to 2131212031230 its reverse (321302121312), we get a palindrome (2452514152542).

The spelling of 2131212031230 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, thirty-one thousand, two hundred thirty".