2631352321 has 8 divisors (see below), whose sum is σ = 2887232040. Its totient is φ = 2383110912.

The previous prime is 2631352319. The next prime is 2631352331. The reversal of 2631352321 is 1232531362.

It can be written as a sum of positive squares in 4 ways, for example, as 204804721 + 2426547600 = 14311^2 + 49260^2 .

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

It is not a de Polignac number, because 2631352321 - 2¹ = 2631352319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2631352321.

It is not an unprimeable number, because it can be changed into a prime (2631352331) 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, 1908856 + ... + 1910233.

It is an arithmetic number, because the mean of its divisors is an integer number (360904005).

Almost surely, 2^2631352321 is an apocalyptic number.

It is an amenable number.

2631352321 is a deficient number, since it is larger than the sum of its proper divisors (255879719).

2631352321 is a wasteful number, since it uses less digits than its factorization.

2631352321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819155.

The product of its digits is 6480, while the sum is 28.

The square root of 2631352321 is about 51296.7086760934. The cubic root of 2631352321 is about 1380.5739265437.

Adding to 2631352321 its reverse (1232531362), we get a palindrome (3863883683).

The spelling of 2631352321 in words is "two billion, six hundred thirty-one million, three hundred fifty-two thousand, three hundred twenty-one".