144311001320021 has 2 divisors, whose sum is σ = 144311001320022. Its totient is φ = 144311001320020.

The previous prime is 144311001320011. The next prime is 144311001320033. The reversal of 144311001320021 is 120023100113441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126239269140625 + 18071732179396 = 11235625^2 + 4251086^2 .

It is a cyclic number.

It is not a de Polignac number, because 144311001320021 - 2⁶ = 144311001319957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144311001320011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72155500660010 + 72155500660011.

It is an arithmetic number, because the mean of its divisors is an integer number (72155500660011).

Almost surely, 2^{144311001320021} is an apocalyptic number.

It is an amenable number.

144311001320021 is a deficient number, since it is larger than the sum of its proper divisors (1).

144311001320021 is an equidigital number, since it uses as much as digits as its factorization.

144311001320021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 144311001320021 its reverse (120023100113441), we get a palindrome (264334101433462).

The spelling of 144311001320021 in words is "one hundred forty-four trillion, three hundred eleven billion, one million, three hundred twenty thousand, twenty-one".