20320323101 has 8 divisors (see below), whose sum is σ = 21890327424. Its totient is φ = 18751304880.

The previous prime is 20320323097. The next prime is 20320323109. The reversal of 20320323101 is 10132302302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20320323101 - 2² = 20320323097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20320323101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320323109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203441 + ... + 286406.

It is an arithmetic number, because the mean of its divisors is an integer number (2736290928).

Almost surely, 2^20320323101 is an apocalyptic number.

It is an amenable number.

20320323101 is a deficient number, since it is larger than the sum of its proper divisors (1570004323).

20320323101 is a wasteful number, since it uses less digits than its factorization.

20320323101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493051.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20320323101 its reverse (10132302302), we get a palindrome (30452625403).

The spelling of 20320323101 in words is "twenty billion, three hundred twenty million, three hundred twenty-three thousand, one hundred one".