10203011999 has 2 divisors, whose sum is σ = 10203012000. Its totient is φ = 10203011998.

The previous prime is 10203011981. The next prime is 10203012019. The reversal of 10203011999 is 99911030201.

10203011999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203011999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10203011939) 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, 5101505999 + 5101506000.

It is an arithmetic number, because the mean of its divisors is an integer number (5101506000).

Almost surely, 2^10203011999 is an apocalyptic number.

10203011999 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203011999 is an equidigital number, since it uses as much as digits as its factorization.

10203011999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The spelling of 10203011999 in words is "ten billion, two hundred three million, eleven thousand, nine hundred ninety-nine".