2066312331 has 12 divisors (see below), whose sum is σ = 2995223608. Its totient is φ = 1372672224.

The previous prime is 2066312309. The next prime is 2066312357. The reversal of 2066312331 is 1332136602.

It is a happy number.

2066312331 is a `hidden beast` number, since 2 + 0 + 6 + 631 + 23 + 3 + 1 = 666.

It is not a de Polignac number, because 2066312331 - 2¹⁵ = 2066279563 is a prime.

It is a super-2 number, since 2×2066312331² = 8539293298485307122, 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 = 2066312295 and 2066312304.

It is not an unprimeable number, because it can be changed into a prime (2066352331) 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 11 ways as a sum of consecutive naturals, for example, 403090 + ... + 408183.

Almost surely, 2^2066312331 is an apocalyptic number.

2066312331 is a deficient number, since it is larger than the sum of its proper divisors (928911277).

2066312331 is a wasteful number, since it uses less digits than its factorization.

2066312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811562 (or 811559 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2066312331 is about 45456.7083168150. The cubic root of 2066312331 is about 1273.6946437209.

Adding to 2066312331 its reverse (1332136602), we get a palindrome (3398448933).

The spelling of 2066312331 in words is "two billion, sixty-six million, three hundred twelve thousand, three hundred thirty-one".