2000312081 has 2 divisors, whose sum is σ = 2000312082. Its totient is φ = 2000312080.

The previous prime is 2000312071. The next prime is 2000312087. The reversal of 2000312081 is 1802130002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1524199681 + 476112400 = 39041^2 + 21820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000312081 - 2¹⁴ = 2000295697 is a prime.

It is a super-2 number, since 2×2000312081² = 8002496842789101122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2000312087) 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 as a sum of consecutive naturals, namely, 1000156040 + 1000156041.

It is an arithmetic number, because the mean of its divisors is an integer number (1000156041).

Almost surely, 2^2000312081 is an apocalyptic number.

It is an amenable number.

2000312081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000312081 is an equidigital number, since it uses as much as digits as its factorization.

2000312081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2000312081 is about 44724.8485855458. The cubic root of 2000312081 is about 1259.9865793901.

Adding to 2000312081 its reverse (1802130002), we get a palindrome (3802442083).

The spelling of 2000312081 in words is "two billion, three hundred twelve thousand, eighty-one".