213231321310 has 32 divisors (see below), whose sum is σ = 441995761152. Its totient is φ = 72549803040.

The previous prime is 213231321239. The next prime is 213231321319. The reversal of 213231321310 is 13123132312.

213231321310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213231321310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213231321319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11617402 + ... + 11635741.

It is an arithmetic number, because the mean of its divisors is an integer number (13812367536).

Almost surely, 2^213231321310 is an apocalyptic number.

213231321310 is an abundant number, since it is smaller than the sum of its proper divisors (228764439842).

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

213231321310 is a wasteful number, since it uses less digits than its factorization.

213231321310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23253288.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213231321310 its reverse (13123132312), we get a palindrome (226354453622).

The spelling of 213231321310 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred twenty-one thousand, three hundred ten".