2131301321 has 8 divisors (see below), whose sum is σ = 2256070080. Its totient is φ = 2009950992.

The previous prime is 2131301297. The next prime is 2131301327. The reversal of 2131301321 is 1231031312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131301321 - 2¹⁸ = 2131039177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2131301321.

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, 853325 + ... + 855818.

It is an arithmetic number, because the mean of its divisors is an integer number (282008760).

Almost surely, 2^2131301321 is an apocalyptic number.

It is an amenable number.

2131301321 is a deficient number, since it is larger than the sum of its proper divisors (124768759).

2131301321 is a wasteful number, since it uses less digits than its factorization.

2131301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709215.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2131301321 is about 46166.0191157955. The cubic root of 2131301321 is about 1286.9103233138.

Adding to 2131301321 its reverse (1231031312), we get a palindrome (3362332633).

The spelling of 2131301321 in words is "two billion, one hundred thirty-one million, three hundred one thousand, three hundred twenty-one".