140043241421 has 2 divisors, whose sum is σ = 140043241422. Its totient is φ = 140043241420.

The previous prime is 140043241379. The next prime is 140043241469. The reversal of 140043241421 is 124142340041.

140043241421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125325912196 + 14717329225 = 354014^2 + 121315^2 .

It is a cyclic number.

It is not a de Polignac number, because 140043241421 - 2¹⁸ = 140042979277 is a prime.

It is a super-2 number, since 2×140043241421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140043241621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70021620710 + 70021620711.

It is an arithmetic number, because the mean of its divisors is an integer number (70021620711).

Almost surely, 2^140043241421 is an apocalyptic number.

It is an amenable number.

140043241421 is a deficient number, since it is larger than the sum of its proper divisors (1).

140043241421 is an equidigital number, since it uses as much as digits as its factorization.

140043241421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 140043241421 its reverse (124142340041), we get a palindrome (264185581462).

The spelling of 140043241421 in words is "one hundred forty billion, forty-three million, two hundred forty-one thousand, four hundred twenty-one".