2631115231 has 8 divisors (see below), whose sum is σ = 2808604800. Its totient is φ = 2457526680.

The previous prime is 2631115217. The next prime is 2631115237. The reversal of 2631115231 is 1325111362.

It is a happy number.

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 2631115231 - 2⁹ = 2631114719 is a prime.

It is a super-2 number, since 2×2631115231² = 13845534717600366722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2631115196 and 2631115205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631115237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973861 + ... + 976558.

It is an arithmetic number, because the mean of its divisors is an integer number (351075600).

Almost surely, 2^2631115231 is an apocalyptic number.

2631115231 is a deficient number, since it is larger than the sum of its proper divisors (177489569).

2631115231 is a wasteful number, since it uses less digits than its factorization.

2631115231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950509.

The product of its digits is 1080, while the sum is 25.

The square root of 2631115231 is about 51294.3976570541. The cubic root of 2631115231 is about 1380.5324611597.

Adding to 2631115231 its reverse (1325111362), we get a palindrome (3956226593).

The spelling of 2631115231 in words is "two billion, six hundred thirty-one million, one hundred fifteen thousand, two hundred thirty-one".