102020102000 has 40 divisors (see below), whose sum is σ = 246684611472. Its totient is φ = 40808040000.

The previous prime is 102020101991. The next prime is 102020102017. The reversal of 102020102000 is 201020201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25503026 + ... + 25507025.

Almost surely, 2^102020102000 is an apocalyptic number.

102020102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020102000 is an abundant number, since it is smaller than the sum of its proper divisors (144664509472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102020102000 is an equidigital number, since it uses as much as digits as its factorization.

102020102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010074 (or 51010058 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 102020102000 its reverse (201020201), we get a palindrome (102221122201).

The spelling of 102020102000 in words is "one hundred two billion, twenty million, one hundred two thousand".