140440301021 has 8 divisors (see below), whose sum is σ = 144979344384. Its totient is φ = 135901802160.

The previous prime is 140440300993. The next prime is 140440301033. The reversal of 140440301021 is 120103044041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140440301021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140440300984 and 140440301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440309021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424811 + ... + 679223.

It is an arithmetic number, because the mean of its divisors is an integer number (18122418048).

Almost surely, 2^140440301021 is an apocalyptic number.

It is an amenable number.

140440301021 is a deficient number, since it is larger than the sum of its proper divisors (4539043363).

140440301021 is a wasteful number, since it uses less digits than its factorization.

140440301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272251.

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

Adding to 140440301021 its reverse (120103044041), we get a palindrome (260543345062).

The spelling of 140440301021 in words is "one hundred forty billion, four hundred forty million, three hundred one thousand, twenty-one".