140343402143 has 4 divisors (see below), whose sum is σ = 160392459600. Its totient is φ = 120294344688.

The previous prime is 140343402139. The next prime is 140343402179. The reversal of 140343402143 is 341204343041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341204343041 = 31 ⋅11006591711.

It is not a de Polignac number, because 140343402143 - 2² = 140343402139 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 (140343405143) 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, 10024528718 + ... + 10024528731.

It is an arithmetic number, because the mean of its divisors is an integer number (40098114900).

Almost surely, 2^140343402143 is an apocalyptic number.

140343402143 is a deficient number, since it is larger than the sum of its proper divisors (20049057457).

140343402143 is an equidigital number, since it uses as much as digits as its factorization.

140343402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20049057456.

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

Adding to 140343402143 its reverse (341204343041), we get a palindrome (481547745184).

The spelling of 140343402143 in words is "one hundred forty billion, three hundred forty-three million, four hundred two thousand, one hundred forty-three".