140420242412243 has 2 divisors, whose sum is σ = 140420242412244. Its totient is φ = 140420242412242.

The previous prime is 140420242412209. The next prime is 140420242412267. The reversal of 140420242412243 is 342214242024041.

It is a strong prime.

It is an emirp because it is prime and its reverse (342214242024041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140420242412243 - 2²⁸ = 140419973976787 is a prime.

It is a super-2 number, since 2×140420242412243² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140420242412743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210121206121 + 70210121206122.

It is an arithmetic number, because the mean of its divisors is an integer number (70210121206122).

Almost surely, 2^{140420242412243} is an apocalyptic number.

140420242412243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140420242412243 is an equidigital number, since it uses as much as digits as its factorization.

140420242412243 is an evil number, because the sum of its binary digits is even.

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

Adding to 140420242412243 its reverse (342214242024041), we get a palindrome (482634484436284).

The spelling of 140420242412243 in words is "one hundred forty trillion, four hundred twenty billion, two hundred forty-two million, four hundred twelve thousand, two hundred forty-three".