213241333331 has 16 divisors (see below), whose sum is σ = 246577722048. Its totient is φ = 182650137600.

The previous prime is 213241333309. The next prime is 213241333367. The reversal of 213241333331 is 133333142312.

It is a cyclic number.

It is not a de Polignac number, because 213241333331 - 2¹⁰ = 213241332307 is a prime.

It is a super-2 number, since 2×213241333331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213241333294 and 213241333303.

It is not an unprimeable number, because it can be changed into a prime (213241333301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6779330 + ... + 6810711.

It is an arithmetic number, because the mean of its divisors is an integer number (15411107628).

Almost surely, 2^213241333331 is an apocalyptic number.

213241333331 is a deficient number, since it is larger than the sum of its proper divisors (33336388717).

213241333331 is a wasteful number, since it uses less digits than its factorization.

213241333331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13590142.

The product of its digits is 11664, while the sum is 29.

Adding to 213241333331 its reverse (133333142312), we get a palindrome (346574475643).

The spelling of 213241333331 in words is "two hundred thirteen billion, two hundred forty-one million, three hundred thirty-three thousand, three hundred thirty-one".