213111330312 has 64 divisors (see below), whose sum is σ = 536196041280. Its totient is φ = 70582321152.

The previous prime is 213111330283. The next prime is 213111330337. The reversal of 213111330312 is 213033111312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3802848 + ... + 3858480.

It is an arithmetic number, because the mean of its divisors is an integer number (8378063145).

Almost surely, 2^213111330312 is an apocalyptic number.

It is an amenable number.

213111330312 is an abundant number, since it is smaller than the sum of its proper divisors (323084710968).

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

213111330312 is a wasteful number, since it uses less digits than its factorization.

213111330312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56662 (or 56658 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213111330312 its reverse (213033111312), we get a palindrome (426144441624).

The spelling of 213111330312 in words is "two hundred thirteen billion, one hundred eleven million, three hundred thirty thousand, three hundred twelve".