20210000102 has 4 divisors (see below), whose sum is σ = 30315000156. Its totient is φ = 10105000050.

The previous prime is 20210000099. The next prime is 20210000137. The reversal of 20210000102 is 20100001202.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20210000102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052500024 + ... + 5052500027.

It is an arithmetic number, because the mean of its divisors is an integer number (7578750039).

Almost surely, 2^20210000102 is an apocalyptic number.

20210000102 is a deficient number, since it is larger than the sum of its proper divisors (10105000054).

20210000102 is a wasteful number, since it uses less digits than its factorization.

20210000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105000053.

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

Adding to 20210000102 its reverse (20100001202), we get a palindrome (40310001304).

The spelling of 20210000102 in words is "twenty billion, two hundred ten million, one hundred two", and thus it is an aban number.