140420242430243 has 2 divisors, whose sum is σ = 140420242430244. Its totient is φ = 140420242430242.

The previous prime is 140420242430239. The next prime is 140420242430261. The reversal of 140420242430243 is 342034242024041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140420242430243 - 2² = 140420242430239 is a prime.

It is not a weakly prime, because it can be changed into another prime (140420242430213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210121215121 + 70210121215122.

It is an arithmetic number, because the mean of its divisors is an integer number (70210121215122).

Almost surely, 2^{140420242430243} is an apocalyptic number.

140420242430243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140420242430243 is an equidigital number, since it uses as much as digits as its factorization.

140420242430243 is an evil number, because the sum of its binary digits is even.

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

Adding to 140420242430243 its reverse (342034242024041), we get a palindrome (482454484454284).

The spelling of 140420242430243 in words is "one hundred forty trillion, four hundred twenty billion, two hundred forty-two million, four hundred thirty thousand, two hundred forty-three".