140420220023443 has 8 divisors (see below), whose sum is σ = 146529212410368. Its totient is φ = 134311541422344.

The previous prime is 140420220023417. The next prime is 140420220023509. The reversal of 140420220023443 is 344320022024041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140420220023443 - 2¹⁷ = 140420219892371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140420220029443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77531755 + ... + 79322212.

It is an arithmetic number, because the mean of its divisors is an integer number (18316151551296).

Almost surely, 2^{140420220023443} is an apocalyptic number.

140420220023443 is a deficient number, since it is larger than the sum of its proper divisors (6108992386925).

140420220023443 is a wasteful number, since it uses less digits than its factorization.

140420220023443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156892913.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 140420220023443 its reverse (344320022024041), we get a palindrome (484740242047484).

The spelling of 140420220023443 in words is "one hundred forty trillion, four hundred twenty billion, two hundred twenty million, twenty-three thousand, four hundred forty-three".