423140442043 has 4 divisors (see below), whose sum is σ = 461607754968. Its totient is φ = 384673129120.

The previous prime is 423140442019. The next prime is 423140442061. The reversal of 423140442043 is 340244041324.

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 423140442043 - 2³³ = 414550507451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423140441996 and 423140442014.

It is not an unprimeable number, because it can be changed into a prime (423140442013) 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, 19233656446 + ... + 19233656467.

It is an arithmetic number, because the mean of its divisors is an integer number (115401938742).

Almost surely, 2^423140442043 is an apocalyptic number.

423140442043 is a deficient number, since it is larger than the sum of its proper divisors (38467312925).

423140442043 is a wasteful number, since it uses less digits than its factorization.

423140442043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38467312924.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 423140442043 its reverse (340244041324), we get a palindrome (763384483367).

The spelling of 423140442043 in words is "four hundred twenty-three billion, one hundred forty million, four hundred forty-two thousand, forty-three".