140421012223321 has 2 divisors, whose sum is σ = 140421012223322. Its totient is φ = 140421012223320.

The previous prime is 140421012223169. The next prime is 140421012223339. The reversal of 140421012223321 is 123322210124041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78498891201600 + 61922121021721 = 8859960^2 + 7869061^2 .

It is a cyclic number.

It is not a de Polignac number, because 140421012223321 - 2⁹ = 140421012222809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140421012223321.

It is not a weakly prime, because it can be changed into another prime (140421012223421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210506111660 + 70210506111661.

It is an arithmetic number, because the mean of its divisors is an integer number (70210506111661).

Almost surely, 2^{140421012223321} is an apocalyptic number.

It is an amenable number.

140421012223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421012223321 is an equidigital number, since it uses as much as digits as its factorization.

140421012223321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 140421012223321 its reverse (123322210124041), we get a palindrome (263743222347362).

The spelling of 140421012223321 in words is "one hundred forty trillion, four hundred twenty-one billion, twelve million, two hundred twenty-three thousand, three hundred twenty-one".