1001303123203 has 2 divisors, whose sum is σ = 1001303123204. Its totient is φ = 1001303123202.

The previous prime is 1001303123173. The next prime is 1001303123207. The reversal of 1001303123203 is 3023213031001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001303123203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001303123207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500651561601 + 500651561602.

It is an arithmetic number, because the mean of its divisors is an integer number (500651561602).

Almost surely, 2^{1001303123203} is an apocalyptic number.

1001303123203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001303123203 is an equidigital number, since it uses as much as digits as its factorization.

1001303123203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1001303123203 its reverse (3023213031001), we get a palindrome (4024516154204).

The spelling of 1001303123203 in words is "one trillion, one billion, three hundred three million, one hundred twenty-three thousand, two hundred three".