2104321243 has 2 divisors, whose sum is σ = 2104321244. Its totient is φ = 2104321242.

The previous prime is 2104321211. The next prime is 2104321249. The reversal of 2104321243 is 3421234012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2104321243 - 2⁵ = 2104321211 is a prime.

It is not a weakly prime, because it can be changed into another prime (2104321249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052160621 + 1052160622.

It is an arithmetic number, because the mean of its divisors is an integer number (1052160622).

Almost surely, 2^2104321243 is an apocalyptic number.

2104321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104321243 is an equidigital number, since it uses as much as digits as its factorization.

2104321243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2104321243 is about 45872.8813461723. The cubic root of 2104321243 is about 1281.4569272829.

Adding to 2104321243 its reverse (3421234012), we get a palindrome (5525555255).

The spelling of 2104321243 in words is "two billion, one hundred four million, three hundred twenty-one thousand, two hundred forty-three".