21235343200321 has 8 divisors (see below), whose sum is σ = 22656118297824. Its totient is φ = 19833638909760.

The previous prime is 21235343200307. The next prime is 21235343200333. The reversal of 21235343200321 is 12300234353212.

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 21235343200321 - 2⁹ = 21235343199809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21235343200021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4767699435 + ... + 4767703888.

It is an arithmetic number, because the mean of its divisors is an integer number (2832014787228).

Almost surely, 2^{21235343200321} is an apocalyptic number.

It is an amenable number.

21235343200321 is a deficient number, since it is larger than the sum of its proper divisors (1420775097503).

21235343200321 is a wasteful number, since it uses less digits than its factorization.

21235343200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9535403471.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 21235343200321 its reverse (12300234353212), we get a palindrome (33535577553533).

The spelling of 21235343200321 in words is "twenty-one trillion, two hundred thirty-five billion, three hundred forty-three million, two hundred thousand, three hundred twenty-one".