140440144312021 has 8 divisors (see below), whose sum is σ = 141226556676480. Its totient is φ = 139653752287392.

The previous prime is 140440144311979. The next prime is 140440144312087. The reversal of 140440144312021 is 120213441044041.

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

It is a cyclic number.

It is not a de Polignac number, because 140440144312021 - 2¹¹ = 140440144309973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440144322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8870001 + ... + 18961993.

It is an arithmetic number, because the mean of its divisors is an integer number (17653319584560).

Almost surely, 2^{140440144312021} is an apocalyptic number.

It is an amenable number.

140440144312021 is a deficient number, since it is larger than the sum of its proper divisors (786412364459).

140440144312021 is a wasteful number, since it uses less digits than its factorization.

140440144312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10169915.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 140440144312021 its reverse (120213441044041), we get a palindrome (260653585356062).

The spelling of 140440144312021 in words is "one hundred forty trillion, four hundred forty billion, one hundred forty-four million, three hundred twelve thousand, twenty-one".