213321430 has 64 divisors (see below), whose sum is σ = 449608320. Its totient is φ = 71368704.

The previous prime is 213321421. The next prime is 213321461. The reversal of 213321430 is 34123312.

It is a junction number, because it is equal to n+sod(n) for n = 213321398 and 213321407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 604134 + ... + 604486.

It is an arithmetic number, because the mean of its divisors is an integer number (7025130).

Almost surely, 2^213321430 is an apocalyptic number.

213321430 is an abundant number, since it is smaller than the sum of its proper divisors (236286890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213321430 is a wasteful number, since it uses less digits than its factorization.

213321430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213321430 is about 14605.5273783592. The cubic root of 213321430 is about 597.5095194062.

Adding to 213321430 its reverse (34123312), we get a palindrome (247444742).

The spelling of 213321430 in words is "two hundred thirteen million, three hundred twenty-one thousand, four hundred thirty".