213353000821 has 8 divisors (see below), whose sum is σ = 222644407680. Its totient is φ = 204062859792.

The previous prime is 213353000767. The next prime is 213353000873. The reversal of 213353000821 is 128000353312.

It is the 188571-st star number.

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 213353000821 - 2¹¹ = 213352998773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213353000821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213353000321) 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, 36360 + ... + 654238.

It is an arithmetic number, because the mean of its divisors is an integer number (27830550960).

Almost surely, 2^213353000821 is an apocalyptic number.

It is an amenable number.

213353000821 is a deficient number, since it is larger than the sum of its proper divisors (9291406859).

213353000821 is a wasteful number, since it uses less digits than its factorization.

213353000821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632915.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 213353000821 in words is "two hundred thirteen billion, three hundred fifty-three million, eight hundred twenty-one", and thus it is an aban number.