2043123231 has 16 divisors (see below), whose sum is σ = 2815027200. Its totient is φ = 1316744160.

The previous prime is 2043123227. The next prime is 2043123263. The reversal of 2043123231 is 1323213402.

It is not a de Polignac number, because 2043123231 - 2² = 2043123227 is a prime.

It is a super-2 number, since 2×2043123231² = 8348705074103758722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2043123198 and 2043123207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043123031) 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 15 ways as a sum of consecutive naturals, for example, 80245 + ... + 102593.

It is an arithmetic number, because the mean of its divisors is an integer number (175939200).

Almost surely, 2^2043123231 is an apocalyptic number.

2043123231 is a deficient number, since it is larger than the sum of its proper divisors (771903969).

2043123231 is a wasteful number, since it uses less digits than its factorization.

2043123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23366.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2043123231 is about 45200.9206875258. The cubic root of 2043123231 is about 1268.9120471643.

Adding to 2043123231 its reverse (1323213402), we get a palindrome (3366336633).

The spelling of 2043123231 in words is "two billion, forty-three million, one hundred twenty-three thousand, two hundred thirty-one".