140223142320421 has 16 divisors (see below), whose sum is σ = 141801567969600. Its totient is φ = 138653179913088.

The previous prime is 140223142320409. The next prime is 140223142320427. The reversal of 140223142320421 is 124023241322041.

It is a cyclic number.

It is not a de Polignac number, because 140223142320421 - 2²⁵ = 140223108765989 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 (140223142320427) 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, 118576761 + ... + 119753473.

It is an arithmetic number, because the mean of its divisors is an integer number (8862597998100).

Almost surely, 2^{140223142320421} is an apocalyptic number.

It is an amenable number.

140223142320421 is a deficient number, since it is larger than the sum of its proper divisors (1578425649179).

140223142320421 is a wasteful number, since it uses less digits than its factorization.

140223142320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180308.

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

Adding to 140223142320421 its reverse (124023241322041), we get a palindrome (264246383642462).

The spelling of 140223142320421 in words is "one hundred forty trillion, two hundred twenty-three billion, one hundred forty-two million, three hundred twenty thousand, four hundred twenty-one".