213111212330 has 8 divisors (see below), whose sum is σ = 383600182212. Its totient is φ = 85244484928.

The previous prime is 213111212323. The next prime is 213111212411. The reversal of 213111212330 is 33212111312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 206707531801 + 6403680529 = 454651^2 + 80023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655560607 + ... + 10655560626.

Almost surely, 2^213111212330 is an apocalyptic number.

213111212330 is a deficient number, since it is larger than the sum of its proper divisors (170488969882).

213111212330 is a wasteful number, since it uses less digits than its factorization.

213111212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311121240.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213111212330 its reverse (33212111312), we get a palindrome (246323323642).

The spelling of 213111212330 in words is "two hundred thirteen billion, one hundred eleven million, two hundred twelve thousand, three hundred thirty".