144220123 has 2 divisors, whose sum is σ = 144220124. Its totient is φ = 144220122.

The previous prime is 144220081. The next prime is 144220133. The reversal of 144220123 is 321022441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144220123 - 2⁹ = 144219611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144220123.

It is not a weakly prime, because it can be changed into another prime (144220133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72110061 + 72110062.

It is an arithmetic number, because the mean of its divisors is an integer number (72110062).

Almost surely, 2^144220123 is an apocalyptic number.

144220123 is a deficient number, since it is larger than the sum of its proper divisors (1).

144220123 is an equidigital number, since it uses as much as digits as its factorization.

144220123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144220123 is about 12009.1682892697. The cubic root of 144220123 is about 524.4152194708.

Adding to 144220123 its reverse (321022441), we get a palindrome (465242564).

The spelling of 144220123 in words is "one hundred forty-four million, two hundred twenty thousand, one hundred twenty-three".