140244031320421 has 16 divisors (see below), whose sum is σ = 161463899681280. Its totient is φ = 119320578645120.

The previous prime is 140244031320347. The next prime is 140244031320521. The reversal of 140244031320421 is 124023130442041.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 140244031320421 - 2³¹ = 140241883836773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140244031320221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3442036 + ... + 17097826.

It is an arithmetic number, because the mean of its divisors is an integer number (10091493730080).

Almost surely, 2^{140244031320421} is an apocalyptic number.

It is an amenable number.

140244031320421 is a deficient number, since it is larger than the sum of its proper divisors (21219868360859).

140244031320421 is a wasteful number, since it uses less digits than its factorization.

140244031320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666644.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 140244031320421 its reverse (124023130442041), we get a palindrome (264267161762462).

The spelling of 140244031320421 in words is "one hundred forty trillion, two hundred forty-four billion, thirty-one million, three hundred twenty thousand, four hundred twenty-one".