243102001003 has 2 divisors, whose sum is σ = 243102001004. Its totient is φ = 243102001002.

The previous prime is 243102000943. The next prime is 243102001027. The reversal of 243102001003 is 300100201342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243102001003 is a prime.

It is a super-2 number, since 2×243102001003² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243102001033) 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 as a sum of consecutive naturals, namely, 121551000501 + 121551000502.

It is an arithmetic number, because the mean of its divisors is an integer number (121551000502).

Almost surely, 2^243102001003 is an apocalyptic number.

243102001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

243102001003 is an equidigital number, since it uses as much as digits as its factorization.

243102001003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 243102001003 its reverse (300100201342), we get a palindrome (543202202345).

The spelling of 243102001003 in words is "two hundred forty-three billion, one hundred two million, one thousand, three".