240213311 has 8 divisors (see below), whose sum is σ = 269939040. Its totient is φ = 212094432.

The previous prime is 240213307. The next prime is 240213313. The reversal of 240213311 is 113312042.

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 240213311 - 2² = 240213307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240213311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240213313) 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 7 ways as a sum of consecutive naturals, for example, 401396 + ... + 401993.

It is an arithmetic number, because the mean of its divisors is an integer number (33742380).

Almost surely, 2^240213311 is an apocalyptic number.

240213311 is a deficient number, since it is larger than the sum of its proper divisors (29725729).

240213311 is a wasteful number, since it uses less digits than its factorization.

240213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803425.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 240213311 is about 15498.8164386833. The cubic root of 240213311 is about 621.6305596917.

Adding to 240213311 its reverse (113312042), we get a palindrome (353525353).

The spelling of 240213311 in words is "two hundred forty million, two hundred thirteen thousand, three hundred eleven".