213321310 has 16 divisors (see below), whose sum is σ = 384538752. Its totient is φ = 85204000.

The previous prime is 213321307. The next prime is 213321313. The reversal of 213321310 is 13123312.

It is an interprime number because it is at equal distance from previous prime (213321307) and next prime (213321313).

It is a super-2 number, since 2×213321310² = 91011962600232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321313) 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, 8206 + ... + 22225.

It is an arithmetic number, because the mean of its divisors is an integer number (24033672).

Almost surely, 2^213321310 is an apocalyptic number.

213321310 is a deficient number, since it is larger than the sum of its proper divisors (171217442).

213321310 is a wasteful number, since it uses less digits than its factorization.

213321310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31139.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213321310 is about 14605.5232703248. The cubic root of 213321310 is about 597.5094073669.

Adding to 213321310 its reverse (13123312), we get a palindrome (226444622).

The spelling of 213321310 in words is "two hundred thirteen million, three hundred twenty-one thousand, three hundred ten".