21312300231001 has 8 divisors (see below), whose sum is σ = 22967310754304. Its totient is φ = 19659518681040.

The previous prime is 21312300230929. The next prime is 21312300231011. The reversal of 21312300231001 is 10013200321312.

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 21312300231001 - 2¹⁷ = 21312300099929 is a prime.

It is a super-2 number, since 2×21312300231001² (a number of 27 digits) contains 22 as substring.

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 21312300231001.

It is not an unprimeable number, because it can be changed into a prime (21312300231011) 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, 557223471 + ... + 557261716.

It is an arithmetic number, because the mean of its divisors is an integer number (2870913844288).

Almost surely, 2^{21312300231001} is an apocalyptic number.

It is an amenable number.

21312300231001 is a deficient number, since it is larger than the sum of its proper divisors (1655010523303).

21312300231001 is a wasteful number, since it uses less digits than its factorization.

21312300231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114486671.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21312300231001 its reverse (10013200321312), we get a palindrome (31325500552313).

The spelling of 21312300231001 in words is "twenty-one trillion, three hundred twelve billion, three hundred million, two hundred thirty-one thousand, one".