213303300120021 has 8 divisors (see below), whose sum is σ = 284406519276000. Its totient is φ = 142201140522032.

The previous prime is 213303300120013. The next prime is 213303300120091. The reversal of 213303300120021 is 120021003303312.

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 213303300120021 - 2³ = 213303300120013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213303300120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213303300120091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264419646 + ... + 265225103.

It is an arithmetic number, because the mean of its divisors is an integer number (35550814909500).

Almost surely, 2^{213303300120021} is an apocalyptic number.

It is an amenable number.

213303300120021 is a deficient number, since it is larger than the sum of its proper divisors (71103219155979).

213303300120021 is a wasteful number, since it uses less digits than its factorization.

213303300120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529778995.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213303300120021 its reverse (120021003303312), we get a palindrome (333324303423333).

The spelling of 213303300120021 in words is "two hundred thirteen trillion, three hundred three billion, three hundred million, one hundred twenty thousand, twenty-one".