140041343231 has 2 divisors, whose sum is σ = 140041343232. Its totient is φ = 140041343230.

The previous prime is 140041343227. The next prime is 140041343243. The reversal of 140041343231 is 132343140041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140041343231 - 2² = 140041343227 is a prime.

It is a super-2 number, since 2×140041343231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140041343231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140041343261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70020671615 + 70020671616.

It is an arithmetic number, because the mean of its divisors is an integer number (70020671616).

Almost surely, 2^140041343231 is an apocalyptic number.

140041343231 is a deficient number, since it is larger than the sum of its proper divisors (1).

140041343231 is an equidigital number, since it uses as much as digits as its factorization.

140041343231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 140041343231 its reverse (132343140041), we get a palindrome (272384483272).

The spelling of 140041343231 in words is "one hundred forty billion, forty-one million, three hundred forty-three thousand, two hundred thirty-one".