2043131231 has 4 divisors (see below), whose sum is σ = 2098351032. Its totient is φ = 1987911432.

The previous prime is 2043131221. The next prime is 2043131249. The reversal of 2043131231 is 1321313402.

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

It is a de Polignac number, because none of the positive numbers 2^k-2043131231 is a prime.

It is a super-2 number, since 2×2043131231² = 8348770454175150722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043131201) 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, 27609845 + ... + 27609918.

It is an arithmetic number, because the mean of its divisors is an integer number (524587758).

Almost surely, 2^2043131231 is an apocalyptic number.

2043131231 is a deficient number, since it is larger than the sum of its proper divisors (55219801).

2043131231 is an equidigital number, since it uses as much as digits as its factorization.

2043131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55219800.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2043131231 is about 45201.0091812119. The cubic root of 2043131231 is about 1268.9137033351.

Adding to 2043131231 its reverse (1321313402), we get a palindrome (3364444633).

The spelling of 2043131231 in words is "two billion, forty-three million, one hundred thirty-one thousand, two hundred thirty-one".