1001020099 has 8 divisors (see below), whose sum is σ = 1044866592. Its totient is φ = 957200640.

The previous prime is 1001020093. The next prime is 1001020109. The reversal of 1001020099 is 9900201001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001020099 - 2⁹ = 1001019587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001020093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118579 + ... + 126739.

It is an arithmetic number, because the mean of its divisors is an integer number (130608324).

Almost surely, 2^1001020099 is an apocalyptic number.

1001020099 is a deficient number, since it is larger than the sum of its proper divisors (43846493).

1001020099 is an equidigital number, since it uses as much as digits as its factorization.

1001020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13517.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1001020099 is about 31638.9016718343. The cubic root of 1001020099 is about 1000.3399174430.

The spelling of 1001020099 in words is "one billion, one million, twenty thousand, ninety-nine".