20321344312301 has 16 divisors (see below), whose sum is σ = 21215502633600. Its totient is φ = 19440090307008.

The previous prime is 20321344312271. The next prime is 20321344312309. The reversal of 20321344312301 is 10321344312302.

It is a cyclic number.

It is not a de Polignac number, because 20321344312301 - 2⁶ = 20321344312237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321344312309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181217816 + ... + 181329918.

It is an arithmetic number, because the mean of its divisors is an integer number (1325968914600).

Almost surely, 2^{20321344312301} is an apocalyptic number.

It is an amenable number.

20321344312301 is a deficient number, since it is larger than the sum of its proper divisors (894158321299).

20321344312301 is a wasteful number, since it uses less digits than its factorization.

20321344312301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169588.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 20321344312301 its reverse (10321344312302), we get a palindrome (30642688624603).

Subtracting from 20321344312301 its reverse (10321344312302), we obtain a palindrome (9999999999999).

The spelling of 20321344312301 in words is "twenty trillion, three hundred twenty-one billion, three hundred forty-four million, three hundred twelve thousand, three hundred one".