212304134130 has 128 divisors (see below), whose sum is σ = 569050603776. Its totient is φ = 50259456000.

The previous prime is 212304134129. The next prime is 212304134149. The reversal of 212304134130 is 31431403212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212304134130.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2389462 + ... + 2476718.

It is an arithmetic number, because the mean of its divisors is an integer number (4445707842).

Almost surely, 2^212304134130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212304134130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284525301888).

212304134130 is an abundant number, since it is smaller than the sum of its proper divisors (356746469646).

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

212304134130 is a wasteful number, since it uses less digits than its factorization.

212304134130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87452.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212304134130 its reverse (31431403212), we get a palindrome (243735537342).

The spelling of 212304134130 in words is "two hundred twelve billion, three hundred four million, one hundred thirty-four thousand, one hundred thirty".