20001002102 has 8 divisors (see below), whose sum is σ = 30004480512. Its totient is φ = 9999508600.

The previous prime is 20001002059. The next prime is 20001002143. The reversal of 20001002102 is 20120010002.

20001002102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20001002102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470774 + ... + 511497.

It is an arithmetic number, because the mean of its divisors is an integer number (3750560064).

Almost surely, 2^20001002102 is an apocalyptic number.

20001002102 is a deficient number, since it is larger than the sum of its proper divisors (10003478410).

20001002102 is a wasteful number, since it uses less digits than its factorization.

20001002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992454.

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

Adding to 20001002102 its reverse (20120010002), we get a palindrome (40121012104).

The spelling of 20001002102 in words is "twenty billion, one million, two thousand, one hundred two".