2043131321 has 16 divisors (see below), whose sum is σ = 2564164608. Its totient is φ = 1581498000.

The previous prime is 2043131317. The next prime is 2043131341. The reversal of 2043131321 is 1231313402.

It is a cyclic number.

It is not a de Polignac number, because 2043131321 - 2² = 2043131317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2043131293 and 2043131302.

It is not an unprimeable number, because it can be changed into a prime (2043131341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76235 + ... + 99488.

It is an arithmetic number, because the mean of its divisors is an integer number (160260288).

Almost surely, 2^2043131321 is an apocalyptic number.

It is an amenable number.

2043131321 is a deficient number, since it is larger than the sum of its proper divisors (521033287).

2043131321 is a wasteful number, since it uses less digits than its factorization.

2043131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175892.

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

The square root of 2043131321 is about 45201.0101767649. The cubic root of 2043131321 is about 1268.9137219670.

Adding to 2043131321 its reverse (1231313402), we get a palindrome (3274444723).

The spelling of 2043131321 in words is "two billion, forty-three million, one hundred thirty-one thousand, three hundred twenty-one".