1020003123199 has 2 divisors, whose sum is σ = 1020003123200. Its totient is φ = 1020003123198.

The previous prime is 1020003123107. The next prime is 1020003123229. The reversal of 1020003123199 is 9913213000201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020003123199 - 2²⁵ = 1019969568767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020003123199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020003163199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510001561599 + 510001561600.

It is an arithmetic number, because the mean of its divisors is an integer number (510001561600).

Almost surely, 2^{1020003123199} is an apocalyptic number.

1020003123199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020003123199 is an equidigital number, since it uses as much as digits as its factorization.

1020003123199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 1020003123199 in words is "one trillion, twenty billion, three million, one hundred twenty-three thousand, one hundred ninety-nine".