423140650243 has 4 divisors (see below), whose sum is σ = 423167861680. Its totient is φ = 423113438808.

The previous prime is 423140650237. The next prime is 423140650301. The reversal of 423140650243 is 342056041324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423140650243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423140650199 and 423140650208.

It is not an unprimeable number, because it can be changed into a prime (423140650843) 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 3 ways as a sum of consecutive naturals, for example, 13582380 + ... + 13613497.

It is an arithmetic number, because the mean of its divisors is an integer number (105791965420).

Almost surely, 2^423140650243 is an apocalyptic number.

423140650243 is a deficient number, since it is larger than the sum of its proper divisors (27211437).

423140650243 is a wasteful number, since it uses less digits than its factorization.

423140650243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27211436.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 423140650243 its reverse (342056041324), we get a palindrome (765196691567).

The spelling of 423140650243 in words is "four hundred twenty-three billion, one hundred forty million, six hundred fifty thousand, two hundred forty-three".