999021104093 has 2 divisors, whose sum is σ = 999021104094. Its totient is φ = 999021104092.

The previous prime is 999021104087. The next prime is 999021104141. The reversal of 999021104093 is 390401120999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845026078009 + 153995026084 = 919253^2 + 392422^2 .

It is a cyclic number.

It is not a de Polignac number, because 999021104093 - 2¹² = 999021099997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999021104063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499510552046 + 499510552047.

It is an arithmetic number, because the mean of its divisors is an integer number (499510552047).

Almost surely, 2^999021104093 is an apocalyptic number.

It is an amenable number.

999021104093 is a deficient number, since it is larger than the sum of its proper divisors (1).

999021104093 is an equidigital number, since it uses as much as digits as its factorization.

999021104093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 999021104093 in words is "nine hundred ninety-nine billion, twenty-one million, one hundred four thousand, ninety-three".