144242112120881 has 2 divisors, whose sum is σ = 144242112120882. Its totient is φ = 144242112120880.

The previous prime is 144242112120787. The next prime is 144242112121087. The reversal of 144242112120881 is 188021211242441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135238757808400 + 9003354312481 = 11629220^2 + 3000559^2 .

It is a cyclic number.

It is not a de Polignac number, because 144242112120881 - 2³⁸ = 143967234213937 is a prime.

It is a super-2 number, since 2×144242112120881² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144242112120781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72121056060440 + 72121056060441.

It is an arithmetic number, because the mean of its divisors is an integer number (72121056060441).

Almost surely, 2^{144242112120881} is an apocalyptic number.

It is an amenable number.

144242112120881 is a deficient number, since it is larger than the sum of its proper divisors (1).

144242112120881 is an equidigital number, since it uses as much as digits as its factorization.

144242112120881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65536, while the sum is 41.

The spelling of 144242112120881 in words is "one hundred forty-four trillion, two hundred forty-two billion, one hundred twelve million, one hundred twenty thousand, eight hundred eighty-one".