140223431444423 has 4 divisors (see below), whose sum is σ = 140627533552680. Its totient is φ = 139819329336168.

The previous prime is 140223431444387. The next prime is 140223431444513. The reversal of 140223431444423 is 324444134322041.

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 140223431444423 - 2¹⁴ = 140223431428039 is a prime.

It is a super-2 number, since 2×140223431444423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140223431444623) 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, 202051053608 + ... + 202051054301.

It is an arithmetic number, because the mean of its divisors is an integer number (35156883388170).

Almost surely, 2^{140223431444423} is an apocalyptic number.

140223431444423 is a deficient number, since it is larger than the sum of its proper divisors (404102108257).

140223431444423 is an equidigital number, since it uses as much as digits as its factorization.

140223431444423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404102108256.

The product of its (nonzero) digits is 884736, while the sum is 41.

Adding to 140223431444423 its reverse (324444134322041), we get a palindrome (464667565766464).

The spelling of 140223431444423 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred twenty-three".