213231310302 has 16 divisors (see below), whose sum is σ = 426521071872. Its totient is φ = 71067361560.

The previous prime is 213231310289. The next prime is 213231310321. The reversal of 213231310302 is 203013132312.

It is a super-2 number, since 2×213231310302² (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 7 ways as a sum of consecutive naturals, for example, 2387974 + ... + 2475657.

It is an arithmetic number, because the mean of its divisors is an integer number (26657566992).

Almost surely, 2^213231310302 is an apocalyptic number.

213231310302 is an abundant number, since it is smaller than the sum of its proper divisors (213289761570).

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

213231310302 is a wasteful number, since it uses less digits than its factorization.

213231310302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4870943.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213231310302 its reverse (203013132312), we get a palindrome (416244442614).

The spelling of 213231310302 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred ten thousand, three hundred two".