20321233301 has 4 divisors (see below), whose sum is σ = 20322419052. Its totient is φ = 20320047552.

The previous prime is 20321233259. The next prime is 20321233313. The reversal of 20321233301 is 10333212302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12342099025 + 7979134276 = 111095^2 + 89326^2 .

It is a cyclic number.

It is not a de Polignac number, because 20321233301 - 2¹⁰ = 20321232277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321233391) 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, 566786 + ... + 601571.

It is an arithmetic number, because the mean of its divisors is an integer number (5080604763).

Almost surely, 2^20321233301 is an apocalyptic number.

It is an amenable number.

20321233301 is a deficient number, since it is larger than the sum of its proper divisors (1185751).

20321233301 is a wasteful number, since it uses less digits than its factorization.

20321233301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185750.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20321233301 its reverse (10333212302), we get a palindrome (30654445603).

The spelling of 20321233301 in words is "twenty billion, three hundred twenty-one million, two hundred thirty-three thousand, three hundred one".