140021321024 has 56 divisors (see below), whose sum is σ = 303327404520. Its totient is φ = 63739920384.

The previous prime is 140021321023. The next prime is 140021321057. The reversal of 140021321024 is 420123120041.

140021321024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13541511424 + 126479809600 = 116368^2 + 355640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140021320987 and 140021321005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140021321023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091969 + ... + 1213440.

It is an arithmetic number, because the mean of its divisors is an integer number (5416560795).

Almost surely, 2^140021321024 is an apocalyptic number.

It is an amenable number.

140021321024 is an abundant number, since it is smaller than the sum of its proper divisors (163306083496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140021321024 is a wasteful number, since it uses less digits than its factorization.

140021321024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305507 (or 2305497 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 140021321024 its reverse (420123120041), we get a palindrome (560144441065).

The spelling of 140021321024 in words is "one hundred forty billion, twenty-one million, three hundred twenty-one thousand, twenty-four".