201020000102 has 16 divisors (see below), whose sum is σ = 304220244960. Its totient is φ = 99613379712.

The previous prime is 201020000101. The next prime is 201020000119. The reversal of 201020000102 is 201000020102.

It is a self number, because there is not a number n which added to its sum of digits gives 201020000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4618799 + ... + 4662117.

It is an arithmetic number, because the mean of its divisors is an integer number (19013765310).

Almost surely, 2^201020000102 is an apocalyptic number.

201020000102 is a deficient number, since it is larger than the sum of its proper divisors (103200244858).

201020000102 is a wasteful number, since it uses less digits than its factorization.

201020000102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63967.

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

Adding to 201020000102 its reverse (201000020102), we get a palindrome (402020020204).

It can be divided in two parts, 201020000 and 102, that added together give a palindrome (201020102).

The spelling of 201020000102 in words is "two hundred one billion, twenty million, one hundred two", and thus it is an aban number.