100102020102 has 64 divisors (see below), whose sum is σ = 256056460800. Its totient is φ = 28394802720.

The previous prime is 100102020059. The next prime is 100102020143. The reversal of 100102020102 is 201020201001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900049 + ... + 1005132.

It is an arithmetic number, because the mean of its divisors is an integer number (4000882200).

Almost surely, 2^100102020102 is an apocalyptic number.

100102020102 is an abundant number, since it is smaller than the sum of its proper divisors (155954440698).

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

100102020102 is a wasteful number, since it uses less digits than its factorization.

100102020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905338 (or 1905332 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100102020102 its reverse (201020201001), we get a palindrome (301122221103).

The spelling of 100102020102 in words is "one hundred billion, one hundred two million, twenty thousand, one hundred two".