20113102101 has 24 divisors (see below), whose sum is σ = 28525565664. Its totient is φ = 12603239680.

The previous prime is 20113102081. The next prime is 20113102103. The reversal of 20113102101 is 10120131102.

It is not a de Polignac number, because 20113102101 - 2²⁹ = 19576231189 is a prime.

It is a super-2 number, since 2×20113102101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113102103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655186 + ... + 685196.

It is an arithmetic number, because the mean of its divisors is an integer number (1188565236).

Almost surely, 2^20113102101 is an apocalyptic number.

It is an amenable number.

20113102101 is a deficient number, since it is larger than the sum of its proper divisors (8412463563).

20113102101 is a wasteful number, since it uses less digits than its factorization.

20113102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30821 (or 30804 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20113102101 its reverse (10120131102), we get a palindrome (30233233203).

The spelling of 20113102101 in words is "twenty billion, one hundred thirteen million, one hundred two thousand, one hundred one".