20320302101 has 24 divisors (see below), whose sum is σ = 22599427032. Its totient is φ = 18255987200.

The previous prime is 20320302073. The next prime is 20320302103. The reversal of 20320302101 is 10120302302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3159564100 + 17160738001 = 56210^2 + 130999^2 .

It is not a de Polignac number, because 20320302101 - 2²² = 20316107797 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 (20320302103) 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, 3859811 + ... + 3865071.

It is an arithmetic number, because the mean of its divisors is an integer number (941642793).

Almost surely, 2^20320302101 is an apocalyptic number.

It is an amenable number.

20320302101 is a deficient number, since it is larger than the sum of its proper divisors (2279124931).

20320302101 is a wasteful number, since it uses less digits than its factorization.

20320302101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653 (or 5642 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20320302101 its reverse (10120302302), we get a palindrome (30440604403).

The spelling of 20320302101 in words is "twenty billion, three hundred twenty million, three hundred two thousand, one hundred one".