2131330321020 has 48 divisors (see below), whose sum is σ = 5980183695360. Its totient is φ = 567168200256.

The previous prime is 2131330321013. The next prime is 2131330321037. The reversal of 2131330321020 is 201230331312.

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, 37050772 + ... + 37108251.

It is an arithmetic number, because the mean of its divisors is an integer number (124587160320).

Almost surely, 2^{2131330321020} is an apocalyptic number.

2131330321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131330321020 is an abundant number, since it is smaller than the sum of its proper divisors (3848853374340).

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

2131330321020 is a wasteful number, since it uses less digits than its factorization.

2131330321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74159514 (or 74159512 counting only the distinct ones).

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

Adding to 2131330321020 its reverse (201230331312), we get a palindrome (2332560652332).

The spelling of 2131330321020 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, three hundred twenty-one thousand, twenty".