212311030302 has 96 divisors (see below), whose sum is σ = 529041756672. Its totient is φ = 60278081472.

The previous prime is 212311030279. The next prime is 212311030361. The reversal of 212311030302 is 203030113212.

212311030302 is a `hidden beast` number, since 21 + 2 + 311 + 0 + 30 + 302 = 666.

It is a super-2 number, since 2×212311030302² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22012293 + ... + 22021935.

It is an arithmetic number, because the mean of its divisors is an integer number (5510851632).

Almost surely, 2^212311030302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212311030302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264520878336).

212311030302 is an abundant number, since it is smaller than the sum of its proper divisors (316730726370).

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

212311030302 is a wasteful number, since it uses less digits than its factorization.

212311030302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10742 (or 10739 counting only the distinct ones).

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

Adding to 212311030302 its reverse (203030113212), we get a palindrome (415341143514).

The spelling of 212311030302 in words is "two hundred twelve billion, three hundred eleven million, thirty thousand, three hundred two".