1011002109 has 12 divisors (see below), whose sum is σ = 1459672416. Its totient is φ = 622154832.

The previous prime is 1011002081. The next prime is 1011002117. The reversal of 1011002109 is 9012001101.

It is not a de Polignac number, because 1011002109 - 2¹⁹ = 1010477821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011002309) 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 11 ways as a sum of consecutive naturals, for example, 996537 + ... + 997550.

It is an arithmetic number, because the mean of its divisors is an integer number (121639368).

Almost surely, 2^1011002109 is an apocalyptic number.

It is an amenable number.

1011002109 is a deficient number, since it is larger than the sum of its proper divisors (448670307).

1011002109 is a wasteful number, since it uses less digits than its factorization.

1011002109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994116 (or 1994103 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 1011002109 is about 31796.2593554651. The cubic root of 1011002109 is about 1003.6540016760.

The spelling of 1011002109 in words is "one billion, eleven million, two thousand, one hundred nine".