2040313231 has 4 divisors (see below), whose sum is σ = 2225796264. Its totient is φ = 1854830200.

The previous prime is 2040313213. The next prime is 2040313243. The reversal of 2040313231 is 1323130402.

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 2040313231 - 2⁵ = 2040313199 is a prime.

It is a super-2 number, since 2×2040313231² = 8325756161187318722, 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 = 2040313199 and 2040313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040313211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92741500 + ... + 92741521.

It is an arithmetic number, because the mean of its divisors is an integer number (556449066).

Almost surely, 2^2040313231 is an apocalyptic number.

2040313231 is a deficient number, since it is larger than the sum of its proper divisors (185483033).

2040313231 is a wasteful number, since it uses less digits than its factorization.

2040313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185483032.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2040313231 is about 45169.8265549028. The cubic root of 2040313231 is about 1268.3300495129.

Adding to 2040313231 its reverse (1323130402), we get a palindrome (3363443633).

The spelling of 2040313231 in words is "two billion, forty million, three hundred thirteen thousand, two hundred thirty-one".