102020000989 has 4 divisors (see below), whose sum is σ = 102025853856. Its totient is φ = 102014148124.

The previous prime is 102020000941. The next prime is 102020001011. The reversal of 102020000989 is 989000020201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102020000989 - 2⁹ = 102020000477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102020000989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020000389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2900209 + ... + 2935174.

It is an arithmetic number, because the mean of its divisors is an integer number (25506463464).

Almost surely, 2^102020000989 is an apocalyptic number.

It is an amenable number.

102020000989 is a deficient number, since it is larger than the sum of its proper divisors (5852867).

102020000989 is an equidigital number, since it uses as much as digits as its factorization.

102020000989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852866.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 102020000989 in words is "one hundred two billion, twenty million, nine hundred eighty-nine", and thus it is an aban number.