2681040031 has 4 divisors (see below), whose sum is σ = 2681702352. Its totient is φ = 2680377712.

The previous prime is 2681040013. The next prime is 2681040071. The reversal of 2681040031 is 1300401862.

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 2681040031 - 2²⁹ = 2144169119 is a prime.

It is a super-2 number, since 2×2681040031² = 14375951295648961922, 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 = 2681039978 and 2681040005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681040001) 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, 325051 + ... + 333196.

It is an arithmetic number, because the mean of its divisors is an integer number (670425588).

Almost surely, 2^2681040031 is an apocalyptic number.

2681040031 is a deficient number, since it is larger than the sum of its proper divisors (662321).

2681040031 is an equidigital number, since it uses as much as digits as its factorization.

2681040031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662320.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2681040031 is about 51778.7604235559. The cubic root of 2681040031 is about 1389.2095692352.

Adding to 2681040031 its reverse (1300401862), we get a palindrome (3981441893).

The spelling of 2681040031 in words is "two billion, six hundred eighty-one million, forty thousand, thirty-one".