140223420214321 has 4 divisors (see below), whose sum is σ = 140399359261812. Its totient is φ = 140047481166832.

The previous prime is 140223420214289. The next prime is 140223420214331. The reversal of 140223420214321 is 123412024322041.

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 48039994725921 + 92183425488400 = 6931089^2 + 9601220^2 .

It is a cyclic number.

It is not a de Polignac number, because 140223420214321 - 2⁵ = 140223420214289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140223420214331) 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, 87969522550 + ... + 87969524143.

It is an arithmetic number, because the mean of its divisors is an integer number (35099839815453).

Almost surely, 2^{140223420214321} is an apocalyptic number.

It is an amenable number.

140223420214321 is a deficient number, since it is larger than the sum of its proper divisors (175939047491).

140223420214321 is an equidigital number, since it uses as much as digits as its factorization.

140223420214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175939047490.

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

Adding to 140223420214321 its reverse (123412024322041), we get a palindrome (263635444536362).

The spelling of 140223420214321 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred twenty million, two hundred fourteen thousand, three hundred twenty-one".