140424303210021 has 6 divisors (see below), whose sum is σ = 202835104636710. Its totient is φ = 93616202140008.

The previous prime is 140424303209929. The next prime is 140424303210031. The reversal of 140424303210021 is 120012303424041.

140424303210021 is a `hidden beast` number, since 1 + 4 + 0 + 424 + 3 + 0 + 3 + 210 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110045345062500 + 30378958147521 = 10490250^2 + 5511711^2 .

It is not a de Polignac number, because 140424303210021 - 2⁷ = 140424303209893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424303210031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7801350178326 + ... + 7801350178343.

It is an arithmetic number, because the mean of its divisors is an integer number (33805850772785).

Almost surely, 2^{140424303210021} is an apocalyptic number.

It is an amenable number.

140424303210021 is a deficient number, since it is larger than the sum of its proper divisors (62410801426689).

140424303210021 is a wasteful number, since it uses less digits than its factorization.

140424303210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15602700356675 (or 15602700356672 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 140424303210021 its reverse (120012303424041), we get a palindrome (260436606634062).

The spelling of 140424303210021 in words is "one hundred forty trillion, four hundred twenty-four billion, three hundred three million, two hundred ten thousand, twenty-one".