102011009 has 8 divisors (see below), whose sum is σ = 107775360. Its totient is φ = 96396496.

The previous prime is 102010991. The next prime is 102011017. The reversal of 102011009 is 900110201.

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 102011009 - 2¹² = 102006913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102010984 and 102011002.

It is not an unprimeable number, because it can be changed into a prime (102011809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36059 + ... + 38784.

It is an arithmetic number, because the mean of its divisors is an integer number (13471920).

Almost surely, 2^102011009 is an apocalyptic number.

It is an amenable number.

102011009 is a deficient number, since it is larger than the sum of its proper divisors (5764351).

102011009 is an equidigital number, since it uses as much as digits as its factorization.

102011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74919.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 102011009 is about 10100.0499503715. The cubic root of 102011009 is about 467.2496819259.

The spelling of 102011009 in words is "one hundred two million, eleven thousand, nine".