213004121 has 8 divisors (see below), whose sum is σ = 233385600. Its totient is φ = 192792240.

The previous prime is 213004111. The next prime is 213004133. The reversal of 213004121 is 121400312.

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 213004121 - 2¹⁴ = 212987737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213004096 and 213004105.

It is not an unprimeable number, because it can be changed into a prime (213004111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39761 + ... + 44798.

It is an arithmetic number, because the mean of its divisors is an integer number (29173200).

Almost surely, 2^213004121 is an apocalyptic number.

It is an amenable number.

213004121 is a deficient number, since it is larger than the sum of its proper divisors (20381479).

213004121 is a wasteful number, since it uses less digits than its factorization.

213004121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84799.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 213004121 is about 14594.6607017772. The cubic root of 213004121 is about 597.2131134435.

Adding to 213004121 its reverse (121400312), we get a palindrome (334404433).

The spelling of 213004121 in words is "two hundred thirteen million, four thousand, one hundred twenty-one".