213133411 has 4 divisors (see below), whose sum is σ = 214018024. Its totient is φ = 212248800.

The previous prime is 213133381. The next prime is 213133423. The reversal of 213133411 is 114331312.

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 213133411 - 2²³ = 204744803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213193411) 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, 441945 + ... + 442426.

It is an arithmetic number, because the mean of its divisors is an integer number (53504506).

Almost surely, 2^213133411 is an apocalyptic number.

213133411 is a deficient number, since it is larger than the sum of its proper divisors (884613).

213133411 is an equidigital number, since it uses as much as digits as its factorization.

213133411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884612.

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

The square root of 213133411 is about 14599.0893894106. The cubic root of 213133411 is about 597.3339218514. Note that the first 3 decimals are identical.

Adding to 213133411 its reverse (114331312), we get a palindrome (327464723).

The spelling of 213133411 in words is "two hundred thirteen million, one hundred thirty-three thousand, four hundred eleven".