240232121 has 4 divisors (see below), whose sum is σ = 243615744. Its totient is φ = 236848500.

The previous prime is 240232081. The next prime is 240232147. The reversal of 240232121 is 121232042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240232121 - 2¹⁴ = 240215737 is a prime.

It is a super-2 number, since 2×240232121² = 115422943920317282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240232121.

It is not an unprimeable number, because it can be changed into a prime (240232021) 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, 1691705 + ... + 1691846.

It is an arithmetic number, because the mean of its divisors is an integer number (60903936).

Almost surely, 2^240232121 is an apocalyptic number.

It is an amenable number.

240232121 is a deficient number, since it is larger than the sum of its proper divisors (3383623).

240232121 is an equidigital number, since it uses as much as digits as its factorization.

240232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383622.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 240232121 is about 15499.4232473341. The cubic root of 240232121 is about 621.6467849453.

Adding to 240232121 its reverse (121232042), we get a palindrome (361464163).

The spelling of 240232121 in words is "two hundred forty million, two hundred thirty-two thousand, one hundred twenty-one".