240330243431 has 4 divisors (see below), whose sum is σ = 254467316592. Its totient is φ = 226193170272.

The previous prime is 240330243421. The next prime is 240330243443. The reversal of 240330243431 is 134342033042.

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

It is a cyclic number.

It is not a de Polignac number, because 240330243431 - 2¹⁰ = 240330242407 is a prime.

It is a super-2 number, since 2×240330243431² (a number of 24 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 = 240330243394 and 240330243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240330243421) 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, 7068536555 + ... + 7068536588.

It is an arithmetic number, because the mean of its divisors is an integer number (63616829148).

Almost surely, 2^240330243431 is an apocalyptic number.

240330243431 is a deficient number, since it is larger than the sum of its proper divisors (14137073161).

240330243431 is a wasteful number, since it uses less digits than its factorization.

240330243431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14137073160.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 240330243431 its reverse (134342033042), we get a palindrome (374672276473).

The spelling of 240330243431 in words is "two hundred forty billion, three hundred thirty million, two hundred forty-three thousand, four hundred thirty-one".