140240021444243 has 4 divisors (see below), whose sum is σ = 160274310222000. Its totient is φ = 120205732666488.

The previous prime is 140240021444239. The next prime is 140240021444273. The reversal of 140240021444243 is 342444120042041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140240021444243 - 2² = 140240021444239 is a prime.

It is a super-2 number, since 2×140240021444243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140240021444203) 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, 10017144388868 + ... + 10017144388881.

It is an arithmetic number, because the mean of its divisors is an integer number (40068577555500).

Almost surely, 2^{140240021444243} is an apocalyptic number.

140240021444243 is a deficient number, since it is larger than the sum of its proper divisors (20034288777757).

140240021444243 is an equidigital number, since it uses as much as digits as its factorization.

140240021444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20034288777756.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 140240021444243 its reverse (342444120042041), we get a palindrome (482684141486284).

The spelling of 140240021444243 in words is "one hundred forty trillion, two hundred forty billion, twenty-one million, four hundred forty-four thousand, two hundred forty-three".