140424430423 has 4 divisors (see below), whose sum is σ = 142726470328. Its totient is φ = 138122390520.

The previous prime is 140424430403. The next prime is 140424430441. The reversal of 140424430423 is 324034424041.

140424430423 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140424430423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424430403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151019861 + ... + 1151019982.

It is an arithmetic number, because the mean of its divisors is an integer number (35681617582).

Almost surely, 2^140424430423 is an apocalyptic number.

140424430423 is a deficient number, since it is larger than the sum of its proper divisors (2302039905).

140424430423 is an equidigital number, since it uses as much as digits as its factorization.

140424430423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302039904.

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

Adding to 140424430423 its reverse (324034424041), we get a palindrome (464458854464).

The spelling of 140424430423 in words is "one hundred forty billion, four hundred twenty-four million, four hundred thirty thousand, four hundred twenty-three".