140420443220243 has 16 divisors (see below), whose sum is σ = 149503369055040. Its totient is φ = 131428964966400.

The previous prime is 140420443220219. The next prime is 140420443220261. The reversal of 140420443220243 is 342022344024041.

It is a cyclic number.

It is not a de Polignac number, because 140420443220243 - 2¹² = 140420443216147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140420443220263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489619658 + ... + 489906368.

It is an arithmetic number, because the mean of its divisors is an integer number (9343960565940).

Almost surely, 2^{140420443220243} is an apocalyptic number.

140420443220243 is a deficient number, since it is larger than the sum of its proper divisors (9082925834797).

140420443220243 is a wasteful number, since it uses less digits than its factorization.

140420443220243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446078.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 140420443220243 its reverse (342022344024041), we get a palindrome (482442787244284).

The spelling of 140420443220243 in words is "one hundred forty trillion, four hundred twenty billion, four hundred forty-three million, two hundred twenty thousand, two hundred forty-three".