2100000102 has 16 divisors (see below), whose sum is σ = 4213253232. Its totient is φ = 697791200.

The previous prime is 2100000101. The next prime is 2100000127. The reversal of 2100000102 is 2010000012.

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 (2100000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550149 + ... + 553952.

It is an arithmetic number, because the mean of its divisors is an integer number (263328327).

Almost surely, 2^2100000102 is an apocalyptic number.

2100000102 is an abundant number, since it is smaller than the sum of its proper divisors (2113253130).

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

2100000102 is a wasteful number, since it uses less digits than its factorization.

2100000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104423.

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

The square root of 2100000102 is about 45825.7580624696. The cubic root of 2100000102 is about 1280.5791857207.

Adding to 2100000102 its reverse (2010000012), we get a palindrome (4110000114).

It can be divided in two parts, 210000010 and 2, that added together give a palindrome (210000012).

The spelling of 2100000102 in words is "two billion, one hundred million, one hundred two", and thus it is an aban number.