213024221331 has 4 divisors (see below), whose sum is σ = 284032295112. Its totient is φ = 142016147552.

The previous prime is 213024221329. The next prime is 213024221359. The reversal of 213024221331 is 133122420312.

213024221331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213024221331 - 2¹ = 213024221329 is a prime.

It is a super-2 number, since 2×213024221331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213024221381) 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 3 ways as a sum of consecutive naturals, for example, 35504036886 + ... + 35504036891.

It is an arithmetic number, because the mean of its divisors is an integer number (71008073778).

Almost surely, 2^213024221331 is an apocalyptic number.

213024221331 is a deficient number, since it is larger than the sum of its proper divisors (71008073781).

213024221331 is an equidigital number, since it uses as much as digits as its factorization.

213024221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71008073780.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 213024221331 its reverse (133122420312), we get a palindrome (346146641643).

The spelling of 213024221331 in words is "two hundred thirteen billion, twenty-four million, two hundred twenty-one thousand, three hundred thirty-one".