20330112101 has 4 divisors (see below), whose sum is σ = 21893966892. Its totient is φ = 18766257312.

The previous prime is 20330112073. The next prime is 20330112107. The reversal of 20330112101 is 10121103302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10121103302 = 2 ⋅5060551651.

It can be written as a sum of positive squares in 2 ways, for example, as 1312323076 + 19017789025 = 36226^2 + 137905^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330112101 - 2⁶ = 20330112037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330112107) 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, 781927376 + ... + 781927401.

It is an arithmetic number, because the mean of its divisors is an integer number (5473491723).

Almost surely, 2^20330112101 is an apocalyptic number.

It is an amenable number.

20330112101 is a deficient number, since it is larger than the sum of its proper divisors (1563854791).

20330112101 is a wasteful number, since it uses less digits than its factorization.

20330112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563854790.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20330112101 its reverse (10121103302), we get a palindrome (30451215403).

The spelling of 20330112101 in words is "twenty billion, three hundred thirty million, one hundred twelve thousand, one hundred one".