2131012130320 has 40 divisors (see below), whose sum is σ = 4954664963736. Its totient is φ = 852394226688.

The previous prime is 2131012130311. The next prime is 2131012130323. The reversal of 2131012130320 is 230312101312.

It can be written as a sum of positive squares in 4 ways, for example, as 1503703777536 + 627308352784 = 1226256^2 + 792028^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2131012130323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10749214 + ... + 10945666.

Almost surely, 2^{2131012130320} is an apocalyptic number.

2131012130320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131012130320 is an abundant number, since it is smaller than the sum of its proper divisors (2823652833416).

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

2131012130320 is a wasteful number, since it uses less digits than its factorization.

2131012130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332059 (or 332053 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2131012130320 its reverse (230312101312), we get a palindrome (2361324231632).

The spelling of 2131012130320 in words is "two trillion, one hundred thirty-one billion, twelve million, one hundred thirty thousand, three hundred twenty".