20210002102 has 16 divisors (see below), whose sum is σ = 30526002000. Its totient is φ = 10034701920.

The previous prime is 20210002079. The next prime is 20210002117. The reversal of 20210002102 is 20120001202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2030077 + ... + 2040007.

It is an arithmetic number, because the mean of its divisors is an integer number (1907875125).

Almost surely, 2^20210002102 is an apocalyptic number.

20210002102 is a deficient number, since it is larger than the sum of its proper divisors (10315999898).

20210002102 is a wasteful number, since it uses less digits than its factorization.

20210002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20210002102 its reverse (20120001202), we get a palindrome (40330003304).

The spelling of 20210002102 in words is "twenty billion, two hundred ten million, two thousand, one hundred two".