140243242323 has 4 divisors (see below), whose sum is σ = 186990989768. Its totient is φ = 93495494880.

The previous prime is 140243242303. The next prime is 140243242393. The reversal of 140243242323 is 323242342041.

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

It is not a de Polignac number, because 140243242323 - 2²⁴ = 140226465107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140243242303) 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, 23373873718 + ... + 23373873723.

It is an arithmetic number, because the mean of its divisors is an integer number (46747747442).

Almost surely, 2^140243242323 is an apocalyptic number.

140243242323 is a deficient number, since it is larger than the sum of its proper divisors (46747747445).

140243242323 is an equidigital number, since it uses as much as digits as its factorization.

140243242323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46747747444.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 140243242323 its reverse (323242342041), we get a palindrome (463485584364).

The spelling of 140243242323 in words is "one hundred forty billion, two hundred forty-three million, two hundred forty-two thousand, three hundred twenty-three".