2000681231 has 4 divisors (see below), whose sum is σ = 2001549264. Its totient is φ = 1999813200.

The previous prime is 2000681129. The next prime is 2000681257. The reversal of 2000681231 is 1321860002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000681231 - 2²² = 1996486927 is a prime.

It is a super-2 number, since 2×2000681231² = 8005450776151350722, 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 = 2000681197 and 2000681206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000681531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430550 + ... + 435171.

It is an arithmetic number, because the mean of its divisors is an integer number (500387316).

Almost surely, 2^2000681231 is an apocalyptic number.

2000681231 is a deficient number, since it is larger than the sum of its proper divisors (868033).

2000681231 is an equidigital number, since it uses as much as digits as its factorization.

2000681231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868032.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2000681231 is about 44728.9752956627. The cubic root of 2000681231 is about 1260.0640832024.

The spelling of 2000681231 in words is "two billion, six hundred eighty-one thousand, two hundred thirty-one".