990111001001039 has 2 divisors, whose sum is σ = 990111001001040. Its totient is φ = 990111001001038.

The previous prime is 990111001001011. The next prime is 990111001001107. The reversal of 990111001001039 is 930100100111099.

It is a weak prime.

It is an emirp because it is prime and its reverse (930100100111099) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990111001001039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990111001001939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495055500500519 + 495055500500520.

It is an arithmetic number, because the mean of its divisors is an integer number (495055500500520).

Almost surely, 2^{990111001001039} is an apocalyptic number.

990111001001039 is a deficient number, since it is larger than the sum of its proper divisors (1).

990111001001039 is an equidigital number, since it uses as much as digits as its factorization.

990111001001039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 35.

The spelling of 990111001001039 in words is "nine hundred ninety trillion, one hundred eleven billion, one million, one thousand, thirty-nine".