213040220411 has 4 divisors (see below), whose sum is σ = 213384389400. Its totient is φ = 212696051424.

The previous prime is 213040220377. The next prime is 213040220447. The reversal of 213040220411 is 114022040312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213040220411 - 2²² = 213036026107 is a prime.

It is a super-2 number, since 2×213040220411² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213040270411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172083566 + ... + 172084803.

It is an arithmetic number, because the mean of its divisors is an integer number (53346097350).

Almost surely, 2^213040220411 is an apocalyptic number.

213040220411 is a deficient number, since it is larger than the sum of its proper divisors (344168989).

213040220411 is an equidigital number, since it uses as much as digits as its factorization.

213040220411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344168988.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 213040220411 its reverse (114022040312), we get a palindrome (327062260723).

The spelling of 213040220411 in words is "two hundred thirteen billion, forty million, two hundred twenty thousand, four hundred eleven".