2131301320 has 32 divisors (see below), whose sum is σ = 4797024120. Its totient is φ = 852236800.

The previous prime is 2131301297. The next prime is 2131301327. The reversal of 2131301320 is 231031312.

It can be written as a sum of positive squares in 4 ways, for example, as 1738389636 + 392911684 = 41694^2 + 19822^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2131301294 and 2131301303.

It is not an unprimeable number, because it can be changed into a prime (2131301327) 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, 146370 + ... + 160270.

Almost surely, 2^2131301320 is an apocalyptic number.

2131301320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131301320 is an abundant number, since it is smaller than the sum of its proper divisors (2665722800).

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

2131301320 is a wasteful number, since it uses less digits than its factorization.

2131301320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17745 (or 17741 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131301320 is about 46166.0191049651. The cubic root of 2131301320 is about 1286.9103231125.

Adding to 2131301320 its reverse (231031312), we get a palindrome (2362332632).

The spelling of 2131301320 in words is "two billion, one hundred thirty-one million, three hundred one thousand, three hundred twenty".