20201002102 has 8 divisors (see below), whose sum is σ = 30595692816.
Its totient is φ = 10002437832.
The previous prime is 20201002057. The next prime is 20201002117. The reversal of 20201002102 is 20120010202.
It is a sphenic number, since it is the product of 3 distinct primes.
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, 49031353 + ... + 49031764.
It is an arithmetic number, because the mean of its divisors is an integer number (3824461602).
Almost surely, 220201002102 is an apocalyptic number.
20201002102 is a deficient number, since it is larger than the sum of its proper divisors (10394690714).
20201002102 is a wasteful number, since it uses less digits than its factorization.
20201002102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98063222.
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 20201002102 its reverse (20120010202), we get a palindrome (40321012304).
It can be divided in two parts, 2020100 and 2102, that added together give a palindrome (2022202).
The spelling of 20201002102 in words is "twenty billion, two hundred one million, two thousand, one hundred two".