20011102102 has 8 divisors (see below), whose sum is σ = 30062066112. Its totient is φ = 9990413400.

The previous prime is 20011102099. The next prime is 20011102103. The reversal of 20011102102 is 20120111002.

20011102102 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011102103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7567174 + ... + 7569817.

It is an arithmetic number, because the mean of its divisors is an integer number (3757758264).

Almost surely, 2^20011102102 is an apocalyptic number.

20011102102 is a deficient number, since it is larger than the sum of its proper divisors (10050964010).

20011102102 is a wasteful number, since it uses less digits than its factorization.

20011102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15137654.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011102102 its reverse (20120111002), we get a palindrome (40131213104).

The spelling of 20011102102 in words is "twenty billion, eleven million, one hundred two thousand, one hundred two".