213121020301 has 8 divisors (see below), whose sum is σ = 243573938240. Its totient is φ = 182669866848.

The previous prime is 213121020283. The next prime is 213121020311. The reversal of 213121020301 is 103020121312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213121020301 - 2⁹ = 213121019789 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 (213121020311) 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, 171291 + ... + 674968.

It is an arithmetic number, because the mean of its divisors is an integer number (30446742280).

Almost surely, 2^213121020301 is an apocalyptic number.

It is an amenable number.

213121020301 is a deficient number, since it is larger than the sum of its proper divisors (30452917939).

213121020301 is an equidigital number, since it uses as much as digits as its factorization.

213121020301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882243.

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

Adding to 213121020301 its reverse (103020121312), we get a palindrome (316141141613).

The spelling of 213121020301 in words is "two hundred thirteen billion, one hundred twenty-one million, twenty thousand, three hundred one".