2400203543 has 2 divisors, whose sum is σ = 2400203544. Its totient is φ = 2400203542.

The previous prime is 2400203513. The next prime is 2400203549. The reversal of 2400203543 is 3453020042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2400203543 - 2⁸ = 2400203287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400203549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200101771 + 1200101772.

It is an arithmetic number, because the mean of its divisors is an integer number (1200101772).

Almost surely, 2^2400203543 is an apocalyptic number.

2400203543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400203543 is an equidigital number, since it uses as much as digits as its factorization.

2400203543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2400203543 is about 48991.8722136642. The cubic root of 2400203543 is about 1338.9037486474.

Adding to 2400203543 its reverse (3453020042), we get a palindrome (5853223585).

The spelling of 2400203543 in words is "two billion, four hundred million, two hundred three thousand, five hundred forty-three".