2131021203330 has 64 divisors (see below), whose sum is σ = 5331199420800. Its totient is φ = 544488322560.

The previous prime is 2131021203313. The next prime is 2131021203341. The reversal of 2131021203330 is 333021201312.

It is a junction number, because it is equal to n+sod(n) for n = 2131021203297 and 2131021203306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9235075 + ... + 9463014.

It is an arithmetic number, because the mean of its divisors is an integer number (83299990950).

Almost surely, 2^{2131021203330} is an apocalyptic number.

2131021203330 is an abundant number, since it is smaller than the sum of its proper divisors (3200178217470).

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

2131021203330 is a wasteful number, since it uses less digits than its factorization.

2131021203330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18698259.

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

Adding to 2131021203330 its reverse (333021201312), we get a palindrome (2464042404642).

The spelling of 2131021203330 in words is "two trillion, one hundred thirty-one billion, twenty-one million, two hundred three thousand, three hundred thirty".