213111030304 has 72 divisors (see below), whose sum is σ = 446947765488. Its totient is φ = 100003317120.

The previous prime is 213111030263. The next prime is 213111030311. The reversal of 213111030304 is 403030111312.

It is a super-2 number, since 2×213111030304² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149859 + ... + 1322269.

It is an arithmetic number, because the mean of its divisors is an integer number (6207607854).

Almost surely, 2^213111030304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213111030304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223473882744).

213111030304 is an abundant number, since it is smaller than the sum of its proper divisors (233836735184).

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

213111030304 is a wasteful number, since it uses less digits than its factorization.

213111030304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172566 (or 172539 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 213111030304 its reverse (403030111312), we get a palindrome (616141141616).

The spelling of 213111030304 in words is "two hundred thirteen billion, one hundred eleven million, thirty thousand, three hundred four".