2043320231 has 4 divisors (see below), whose sum is σ = 2043531864. Its totient is φ = 2043108600.

The previous prime is 2043320203. The next prime is 2043320243. The reversal of 2043320231 is 1320233402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320233402 = 2 ⋅660116701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2043320231 is a prime.

It is a super-2 number, since 2×2043320231² = 8350315132827786722, 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 (2043320261) 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, 90605 + ... + 110886.

It is an arithmetic number, because the mean of its divisors is an integer number (510882966).

Almost surely, 2^2043320231 is an apocalyptic number.

2043320231 is a deficient number, since it is larger than the sum of its proper divisors (211633).

2043320231 is a wasteful number, since it uses less digits than its factorization.

2043320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211632.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2043320231 is about 45203.0997941513. The cubic root of 2043320231 is about 1268.9528291129.

Adding to 2043320231 its reverse (1320233402), we get a palindrome (3363553633).

The spelling of 2043320231 in words is "two billion, forty-three million, three hundred twenty thousand, two hundred thirty-one".