20320102321201 has 4 divisors (see below), whose sum is σ = 20323343690100. Its totient is φ = 20316860952304.

The previous prime is 20320102321153. The next prime is 20320102321249. The reversal of 20320102321201 is 10212320102302.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20320102321153) and next prime (20320102321249).

It can be written as a sum of positive squares in 2 ways, for example, as 14616674726976 + 5703427594225 = 3823176^2 + 2388185^2 .

It is a cyclic number.

It is not a de Polignac number, because 20320102321201 - 2⁹ = 20320102320689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20320102391201) 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, 1620675046 + ... + 1620687583.

It is an arithmetic number, because the mean of its divisors is an integer number (5080835922525).

Almost surely, 2^{20320102321201} is an apocalyptic number.

It is an amenable number.

20320102321201 is a deficient number, since it is larger than the sum of its proper divisors (3241368899).

20320102321201 is an equidigital number, since it uses as much as digits as its factorization.

20320102321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241368898.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20320102321201 its reverse (10212320102302), we get a palindrome (30532422423503).

The spelling of 20320102321201 in words is "twenty trillion, three hundred twenty billion, one hundred two million, three hundred twenty-one thousand, two hundred one".