2131343130 has 64 divisors (see below), whose sum is σ = 5856572160. Its totient is φ = 486280704.

The previous prime is 2131343129. The next prime is 2131343141. The reversal of 2131343130 is 313431312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2131343097 and 2131343106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110572 + ... + 128408.

It is an arithmetic number, because the mean of its divisors is an integer number (91508940).

Almost surely, 2^2131343130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131343130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2928286080).

2131343130 is an abundant number, since it is smaller than the sum of its proper divisors (3725229030).

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

2131343130 is a wasteful number, since it uses less digits than its factorization.

2131343130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18423.

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

The square root of 2131343130 is about 46166.4719249804. The cubic root of 2131343130 is about 1286.9187382168.

Adding to 2131343130 its reverse (313431312), we get a palindrome (2444774442).

The spelling of 2131343130 in words is "two billion, one hundred thirty-one million, three hundred forty-three thousand, one hundred thirty".