1001000099993 has 2 divisors, whose sum is σ = 1001000099994. Its totient is φ = 1001000099992.

The previous prime is 1001000099987. The next prime is 1001000100053. The reversal of 1001000099993 is 3999900001001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590204989504 + 410795110489 = 768248^2 + 640933^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001000099993 - 2²⁶ = 1000932991129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001000099993.

It is not a weakly prime, because it can be changed into another prime (1001000099963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500500049996 + 500500049997.

It is an arithmetic number, because the mean of its divisors is an integer number (500500049997).

Almost surely, 2^{1001000099993} is an apocalyptic number.

It is an amenable number.

1001000099993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001000099993 is an equidigital number, since it uses as much as digits as its factorization.

1001000099993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19683, while the sum is 41.

The spelling of 1001000099993 in words is "one trillion, one billion, ninety-nine thousand, nine hundred ninety-three".