102020100002 has 8 divisors (see below), whose sum is σ = 156762592812. Its totient is φ = 49765902400.

The previous prime is 102020099989. The next prime is 102020100071. The reversal of 102020100002 is 200001020201.

It can be written as a sum of positive squares in 2 ways, for example, as 100685001481 + 1335098521 = 317309^2 + 36539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622073699 + ... + 622073862.

Almost surely, 2^102020100002 is an apocalyptic number.

102020100002 is a deficient number, since it is larger than the sum of its proper divisors (54742492810).

102020100002 is a wasteful number, since it uses less digits than its factorization.

102020100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244147604.

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

Adding to 102020100002 its reverse (200001020201), we get a palindrome (302021120203).

The spelling of 102020100002 in words is "one hundred two billion, twenty million, one hundred thousand, two".