213111330001 has 8 divisors (see below), whose sum is σ = 213542247240. Its totient is φ = 212680753152.

The previous prime is 213111329993. The next prime is 213111330007. The reversal of 213111330001 is 100033111312.

It can be written as a sum of positive squares in 4 ways, for example, as 1673219025 + 211438110976 = 40905^2 + 459824^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 213111330001 - 2³ = 213111329993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213111330007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187481 + ... + 1355113.

It is an arithmetic number, because the mean of its divisors is an integer number (26692780905).

Almost surely, 2^213111330001 is an apocalyptic number.

It is an amenable number.

213111330001 is a deficient number, since it is larger than the sum of its proper divisors (430917239).

213111330001 is a wasteful number, since it uses less digits than its factorization.

213111330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170195.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 213111330001 its reverse (100033111312), we get a palindrome (313144441313).

The spelling of 213111330001 in words is "two hundred thirteen billion, one hundred eleven million, three hundred thirty thousand, one".