100020102 has 64 divisors (see below), whose sum is σ = 252908544. Its totient is φ = 25660800.

The previous prime is 100020023. The next prime is 100020103. The reversal of 100020102 is 201020001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17727 + ... + 22677.

It is an arithmetic number, because the mean of its divisors is an integer number (3951696).

Almost surely, 2^100020102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100020102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126454272).

100020102 is an abundant number, since it is smaller than the sum of its proper divisors (152888442).

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

100020102 is a wasteful number, since it uses less digits than its factorization.

100020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5013.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 100020102 is about 10001.0050494938. The cubic root of 100020102 is about 464.1899830171.

Adding to 100020102 its reverse (201020001), we get a palindrome (301040103).

The spelling of 100020102 in words is "one hundred million, twenty thousand, one hundred two".