140042420140313 has 4 divisors (see below), whose sum is σ = 140045564873508. Its totient is φ = 140039275407120.

The previous prime is 140042420140247. The next prime is 140042420140349. The reversal of 140042420140313 is 313041024240041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87676761506569 + 52365658633744 = 9363587^2 + 7236412^2 .

It is a cyclic number.

It is not a de Polignac number, because 140042420140313 - 2²⁰ = 140042419091737 is a prime.

It is a super-2 number, since 2×140042420140313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140042420140213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572299798 + ... + 1572388863.

It is an arithmetic number, because the mean of its divisors is an integer number (35011391218377).

Almost surely, 2^{140042420140313} is an apocalyptic number.

It is an amenable number.

140042420140313 is a deficient number, since it is larger than the sum of its proper divisors (3144733195).

140042420140313 is an equidigital number, since it uses as much as digits as its factorization.

140042420140313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144733194.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 140042420140313 its reverse (313041024240041), we get a palindrome (453083444380354).

The spelling of 140042420140313 in words is "one hundred forty trillion, forty-two billion, four hundred twenty million, one hundred forty thousand, three hundred thirteen".