140224210432321 has 4 divisors (see below), whose sum is σ = 140528384425044. Its totient is φ = 139920036439600.

The previous prime is 140224210432297. The next prime is 140224210432351. The reversal of 140224210432321 is 123234012422041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106891612545600 + 33332597886721 = 10338840^2 + 5773439^2 .

It is a cyclic number.

It is not a de Polignac number, because 140224210432321 - 2²⁹ = 140223673561409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140224210432351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152086995670 + ... + 152086996591.

It is an arithmetic number, because the mean of its divisors is an integer number (35132096106261).

Almost surely, 2^{140224210432321} is an apocalyptic number.

It is an amenable number.

140224210432321 is a deficient number, since it is larger than the sum of its proper divisors (304173992723).

140224210432321 is an equidigital number, since it uses as much as digits as its factorization.

140224210432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304173992722.

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

Adding to 140224210432321 its reverse (123234012422041), we get a palindrome (263458222854362).

The spelling of 140224210432321 in words is "one hundred forty trillion, two hundred twenty-four billion, two hundred ten million, four hundred thirty-two thousand, three hundred twenty-one".