213310030122 has 96 divisors (see below), whose sum is σ = 547899416064. Its totient is φ = 60930111600.

The previous prime is 213310030117. The next prime is 213310030123. The reversal of 213310030122 is 221030013312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 213310030095 and 213310030104.

It is not an unprimeable number, because it can be changed into a prime (213310030123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22758097 + ... + 22767467.

It is an arithmetic number, because the mean of its divisors is an integer number (5707285584).

Almost surely, 2^213310030122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213310030122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273949708032).

213310030122 is an abundant number, since it is smaller than the sum of its proper divisors (334589385942).

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

213310030122 is an equidigital number, since it uses as much as digits as its factorization.

213310030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16086 (or 16074 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213310030122 its reverse (221030013312), we get a palindrome (434340043434).

The spelling of 213310030122 in words is "two hundred thirteen billion, three hundred ten million, thirty thousand, one hundred twenty-two".