1001128488499 has 2 divisors, whose sum is σ = 1001128488500. Its totient is φ = 1001128488498.

The previous prime is 1001128488491. The next prime is 1001128488509. The reversal of 1001128488499 is 9948848211001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001128488499 - 2³ = 1001128488491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001128488491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500564244249 + 500564244250.

It is an arithmetic number, because the mean of its divisors is an integer number (500564244250).

Almost surely, 2^{1001128488499} is an apocalyptic number.

1001128488499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001128488499 is an equidigital number, since it uses as much as digits as its factorization.

1001128488499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 55.

The spelling of 1001128488499 in words is "one trillion, one billion, one hundred twenty-eight million, four hundred eighty-eight thousand, four hundred ninety-nine".