140320331021 has 16 divisors (see below), whose sum is σ = 156123502080. Its totient is φ = 125239988160.

The previous prime is 140320330961. The next prime is 140320331027. The reversal of 140320331021 is 120133023041.

140320331021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140320331021 - 2¹⁰ = 140320329997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140320330984 and 140320331002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140320331027) 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 15 ways as a sum of consecutive naturals, for example, 318995 + ... + 618383.

It is an arithmetic number, because the mean of its divisors is an integer number (9757718880).

Almost surely, 2^140320331021 is an apocalyptic number.

It is an amenable number.

140320331021 is a deficient number, since it is larger than the sum of its proper divisors (15803171059).

140320331021 is a wasteful number, since it uses less digits than its factorization.

140320331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300596.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 140320331021 its reverse (120133023041), we get a palindrome (260453354062).

The spelling of 140320331021 in words is "one hundred forty billion, three hundred twenty million, three hundred thirty-one thousand, twenty-one".