213122311302 has 16 divisors (see below), whose sum is σ = 433232240112. Its totient is φ = 69876167520.

The previous prime is 213122311253. The next prime is 213122311313. The reversal of 213122311302 is 203113221312.

It is a super-2 number, since 2×213122311302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291150333 + ... + 291151064.

It is an arithmetic number, because the mean of its divisors is an integer number (27077015007).

Almost surely, 2^213122311302 is an apocalyptic number.

213122311302 is an abundant number, since it is smaller than the sum of its proper divisors (220109928810).

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

213122311302 is a wasteful number, since it uses less digits than its factorization.

213122311302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582301463.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213122311302 its reverse (203113221312), we get a palindrome (416235532614).

The spelling of 213122311302 in words is "two hundred thirteen billion, one hundred twenty-two million, three hundred eleven thousand, three hundred two".