140020420323 has 32 divisors (see below), whose sum is σ = 218809608192. Its totient is φ = 77974041600.

The previous prime is 140020420307. The next prime is 140020420357. The reversal of 140020420323 is 323024020041.

140020420323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140020420323 - 2⁴ = 140020420307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 140020420323.

It is not an unprimeable number, because it can be changed into a prime (140020428323) 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 in 31 ways as a sum of consecutive naturals, for example, 695115 + ... + 873627.

It is an arithmetic number, because the mean of its divisors is an integer number (6837800256).

Almost surely, 2^140020420323 is an apocalyptic number.

140020420323 is a deficient number, since it is larger than the sum of its proper divisors (78789187869).

140020420323 is a wasteful number, since it uses less digits than its factorization.

140020420323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179475.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 140020420323 its reverse (323024020041), we get a palindrome (463044440364).

The spelling of 140020420323 in words is "one hundred forty billion, twenty million, four hundred twenty thousand, three hundred twenty-three".