1240203203 has 2 divisors, whose sum is σ = 1240203204. Its totient is φ = 1240203202.

The previous prime is 1240203197. The next prime is 1240203229. The reversal of 1240203203 is 3023020421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240203203 - 2²⁸ = 971767747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240203253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620101601 + 620101602.

It is an arithmetic number, because the mean of its divisors is an integer number (620101602).

Almost surely, 2^1240203203 is an apocalyptic number.

1240203203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240203203 is an equidigital number, since it uses as much as digits as its factorization.

1240203203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1240203203 is about 35216.5188938373. The cubic root of 1240203203 is about 1074.3957528685.

Adding to 1240203203 its reverse (3023020421), we get a palindrome (4263223624).

The spelling of 1240203203 in words is "one billion, two hundred forty million, two hundred three thousand, two hundred three".