140234243423 has 4 divisors (see below), whose sum is σ = 140256295728. Its totient is φ = 140212191120.

The previous prime is 140234243417. The next prime is 140234243467. The reversal of 140234243423 is 324342432041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324342432041 = 7187 ⋅45129043.

It is a cyclic number.

It is not a de Polignac number, because 140234243423 - 2¹⁴ = 140234227039 is a prime.

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 140234243423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140234243323) 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, 11016611 + ... + 11029332.

It is an arithmetic number, because the mean of its divisors is an integer number (35064073932).

Almost surely, 2^140234243423 is an apocalyptic number.

140234243423 is a deficient number, since it is larger than the sum of its proper divisors (22052305).

140234243423 is an equidigital number, since it uses as much as digits as its factorization.

140234243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22052304.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 140234243423 its reverse (324342432041), we get a palindrome (464576675464).

The spelling of 140234243423 in words is "one hundred forty billion, two hundred thirty-four million, two hundred forty-three thousand, four hundred twenty-three".