140421341831 has 2 divisors, whose sum is σ = 140421341832. Its totient is φ = 140421341830.

The previous prime is 140421341789. The next prime is 140421341849. The reversal of 140421341831 is 138143124041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140421341831 is a prime.

It is a super-2 number, since 2×140421341831² (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 (140421341891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210670915 + 70210670916.

It is an arithmetic number, because the mean of its divisors is an integer number (70210670916).

Almost surely, 2^140421341831 is an apocalyptic number.

140421341831 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421341831 is an equidigital number, since it uses as much as digits as its factorization.

140421341831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 140421341831 its reverse (138143124041), we get a palindrome (278564465872).

The spelling of 140421341831 in words is "one hundred forty billion, four hundred twenty-one million, three hundred forty-one thousand, eight hundred thirty-one".