240331121 has 4 divisors (see below), whose sum is σ = 240367332. Its totient is φ = 240294912.

The previous prime is 240331093. The next prime is 240331153. The reversal of 240331121 is 121133042.

240331121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102010000 + 138321121 = 10100^2 + 11761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240331121 is a prime.

It is a super-2 number, since 2×240331121² = 115518095442233282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240331121.

It is not an unprimeable number, because it can be changed into a prime (240331181) 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, 4976 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (60091833).

Almost surely, 2^240331121 is an apocalyptic number.

It is an amenable number.

240331121 is a deficient number, since it is larger than the sum of its proper divisors (36211).

240331121 is an equidigital number, since it uses as much as digits as its factorization.

240331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36210.

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

The square root of 240331121 is about 15502.6165855961. The cubic root of 240331121 is about 621.7321670601.

Adding to 240331121 its reverse (121133042), we get a palindrome (361464163).

The spelling of 240331121 in words is "two hundred forty million, three hundred thirty-one thousand, one hundred twenty-one".