40003103243 has 2 divisors, whose sum is σ = 40003103244. Its totient is φ = 40003103242.

The previous prime is 40003103167. The next prime is 40003103251. The reversal of 40003103243 is 34230130004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40003103243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40003103293) 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, 20001551621 + 20001551622.

It is an arithmetic number, because the mean of its divisors is an integer number (20001551622).

Almost surely, 2^40003103243 is an apocalyptic number.

40003103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40003103243 is an equidigital number, since it uses as much as digits as its factorization.

40003103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 40003103243 its reverse (34230130004), we get a palindrome (74233233247).

The spelling of 40003103243 in words is "forty billion, three million, one hundred three thousand, two hundred forty-three".