211353321 has 8 divisors (see below), whose sum is σ = 296636320. Its totient is φ = 133486272.

The previous prime is 211353301. The next prime is 211353377. The reversal of 211353321 is 123353112.

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

It is not a de Polignac number, because 211353321 - 2¹⁵ = 211320553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211353301) 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, 1853920 + ... + 1854033.

It is an arithmetic number, because the mean of its divisors is an integer number (37079540).

Almost surely, 2^211353321 is an apocalyptic number.

It is an amenable number.

211353321 is a deficient number, since it is larger than the sum of its proper divisors (85282999).

211353321 is a wasteful number, since it uses less digits than its factorization.

211353321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707975.

The product of its digits is 540, while the sum is 21.

The square root of 211353321 is about 14537.9957697064. The cubic root of 211353321 is about 595.6662931146. Note that the first 3 decimals are identical.

The spelling of 211353321 in words is "two hundred eleven million, three hundred fifty-three thousand, three hundred twenty-one".