213411331 has 8 divisors (see below), whose sum is σ = 244387584. Its totient is φ = 182557320.

The previous prime is 213411323. The next prime is 213411371. The reversal of 213411331 is 133114312.

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 213411331 - 2³ = 213411323 is a prime.

It is a super-2 number, since 2×213411331² = 91088792398383122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213411299 and 213411308.

It is not an unprimeable number, because it can be changed into a prime (213411371) 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, 26785 + ... + 33826.

It is an arithmetic number, because the mean of its divisors is an integer number (30548448).

Almost surely, 2^213411331 is an apocalyptic number.

213411331 is a deficient number, since it is larger than the sum of its proper divisors (30976253).

213411331 is an equidigital number, since it uses as much as digits as its factorization.

213411331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61121.

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

The square root of 213411331 is about 14608.6046903871. The cubic root of 213411331 is about 597.5934446500.

Adding to 213411331 its reverse (133114312), we get a palindrome (346525643).

The spelling of 213411331 in words is "two hundred thirteen million, four hundred eleven thousand, three hundred thirty-one".