213123323310 has 64 divisors (see below), whose sum is σ = 514941235200. Its totient is φ = 56451225600.

The previous prime is 213123323279. The next prime is 213123323333. The reversal of 213123323310 is 13323321312.

It is a super-2 number, since 2×213123323310² (a number of 23 digits) contains 22 as substring.

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, 2968335 + ... + 3039285.

It is an arithmetic number, because the mean of its divisors is an integer number (8045956800).

Almost surely, 2^213123323310 is an apocalyptic number.

213123323310 is an abundant number, since it is smaller than the sum of its proper divisors (301817911890).

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

213123323310 is a wasteful number, since it uses less digits than its factorization.

213123323310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71633.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 213123323310 its reverse (13323321312), we get a palindrome (226446644622).

The spelling of 213123323310 in words is "two hundred thirteen billion, one hundred twenty-three million, three hundred twenty-three thousand, three hundred ten".