2104020243 has 48 divisors (see below), whose sum is σ = 3448833024. Its totient is φ = 1226301120.

The previous prime is 2104020227. The next prime is 2104020293. The reversal of 2104020243 is 3420204012.

2104020243 is a `hidden beast` number, since 21 + 0 + 402 + 0 + 243 = 666.

It is not a de Polignac number, because 2104020243 - 2⁴ = 2104020227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2104020293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 273378 + ... + 280968.

It is an arithmetic number, because the mean of its divisors is an integer number (71850688).

Almost surely, 2^2104020243 is an apocalyptic number.

2104020243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2104020243 is a deficient number, since it is larger than the sum of its proper divisors (1344812781).

2104020243 is a wasteful number, since it uses less digits than its factorization.

2104020243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736 (or 7733 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2104020243 is about 45869.6004233741. The cubic root of 2104020243 is about 1281.3958249316.

Adding to 2104020243 its reverse (3420204012), we get a palindrome (5524224255).

The spelling of 2104020243 in words is "two billion, one hundred four million, twenty thousand, two hundred forty-three".