102020101009 has 8 divisors (see below), whose sum is σ = 104233230720. Its totient is φ = 99808741776.

The previous prime is 102020100977. The next prime is 102020101013. The reversal of 102020101009 is 900101020201.

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 102020101009 - 2⁵ = 102020100977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102020100983 and 102020101001.

It is not an unprimeable number, because it can be changed into a prime (102020101049) 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, 325794 + ... + 556939.

It is an arithmetic number, because the mean of its divisors is an integer number (13029153840).

Almost surely, 2^102020101009 is an apocalyptic number.

It is an amenable number.

102020101009 is a deficient number, since it is larger than the sum of its proper divisors (2213129711).

102020101009 is an equidigital number, since it uses as much as digits as its factorization.

102020101009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885239.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 102020101009 in words is "one hundred two billion, twenty million, one hundred one thousand, nine".