21320112301 has 8 divisors (see below), whose sum is σ = 22575609144. Its totient is φ = 20064768000.

The previous prime is 21320112221. The next prime is 21320112343. The reversal of 21320112301 is 10321102312.

It can be written as a sum of positive squares in 4 ways, for example, as 2186030025 + 19134082276 = 46755^2 + 138326^2 .

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 21320112301 - 2¹³ = 21320104109 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 (21320112371) 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, 381891 + ... + 434143.

It is an arithmetic number, because the mean of its divisors is an integer number (2821951143).

Almost surely, 2^21320112301 is an apocalyptic number.

It is an amenable number.

21320112301 is a deficient number, since it is larger than the sum of its proper divisors (1255496843).

21320112301 is a wasteful number, since it uses less digits than its factorization.

21320112301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76271.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21320112301 its reverse (10321102312), we get a palindrome (31641214613).

It can be divided in two parts, 2132011 and 2301, that added together give a palindrome (2134312).

The spelling of 21320112301 in words is "twenty-one billion, three hundred twenty million, one hundred twelve thousand, three hundred one".