140343421223 has 4 divisors (see below), whose sum is σ = 140464096008. Its totient is φ = 140222746440.

The previous prime is 140343421201. The next prime is 140343421241. The reversal of 140343421223 is 322124343041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322124343041 = 257 ⋅1253402113.

It is a cyclic number.

It is not a de Polignac number, because 140343421223 - 2¹⁸ = 140343159079 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 (140343721223) 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, 60335648 + ... + 60337973.

It is an arithmetic number, because the mean of its divisors is an integer number (35116024002).

Almost surely, 2^140343421223 is an apocalyptic number.

140343421223 is a deficient number, since it is larger than the sum of its proper divisors (120674785).

140343421223 is a wasteful number, since it uses less digits than its factorization.

140343421223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120674784.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 140343421223 its reverse (322124343041), we get a palindrome (462467764264).

The spelling of 140343421223 in words is "one hundred forty billion, three hundred forty-three million, four hundred twenty-one thousand, two hundred twenty-three".