2131032331 has 8 divisors (see below), whose sum is σ = 2267844480. Its totient is φ = 1995493248.

The previous prime is 2131032307. The next prime is 2131032373. The reversal of 2131032331 is 1332301312.

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 2131032331 - 2¹¹ = 2131030283 is a prime.

It is a super-2 number, since 2×2131032331² = 9082597591534587122, 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 = 2131032299 and 2131032308.

It is not an unprimeable number, because it can be changed into a prime (2131032931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314811 + ... + 321508.

It is an arithmetic number, because the mean of its divisors is an integer number (283480560).

Almost surely, 2^2131032331 is an apocalyptic number.

2131032331 is a deficient number, since it is larger than the sum of its proper divisors (136812149).

2131032331 is a wasteful number, since it uses less digits than its factorization.

2131032331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636533.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2131032331 is about 46163.1057339083. The cubic root of 2131032331 is about 1286.8561810286.

Adding to 2131032331 its reverse (1332301312), we get a palindrome (3463333643).

The spelling of 2131032331 in words is "two billion, one hundred thirty-one million, thirty-two thousand, three hundred thirty-one".