213411131 has 4 divisors (see below), whose sum is σ = 213555000. Its totient is φ = 213267264.

The previous prime is 213411071. The next prime is 213411151. The reversal of 213411131 is 131114312.

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 213411131 - 2¹⁴ = 213394747 is a prime.

It is a super-2 number, since 2×213411131² = 91088621669398322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213411151) 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, 69686 + ... + 72683.

It is an arithmetic number, because the mean of its divisors is an integer number (53388750).

Almost surely, 2^213411131 is an apocalyptic number.

213411131 is a deficient number, since it is larger than the sum of its proper divisors (143869).

213411131 is a wasteful number, since it uses less digits than its factorization.

213411131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143868.

The product of its digits is 72, while the sum is 17.

The square root of 213411131 is about 14608.5978451048. The cubic root of 213411131 is about 597.5932579703.

Adding to 213411131 its reverse (131114312), we get a palindrome (344525443).

The spelling of 213411131 in words is "two hundred thirteen million, four hundred eleven thousand, one hundred thirty-one".