144312321187 has 2 divisors, whose sum is σ = 144312321188. Its totient is φ = 144312321186.

The previous prime is 144312321161. The next prime is 144312321203. The reversal of 144312321187 is 781123213441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144312321187 - 2¹¹ = 144312319139 is a prime.

It is not a weakly prime, because it can be changed into another prime (144312321157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72156160593 + 72156160594.

It is an arithmetic number, because the mean of its divisors is an integer number (72156160594).

Almost surely, 2^144312321187 is an apocalyptic number.

144312321187 is a deficient number, since it is larger than the sum of its proper divisors (1).

144312321187 is an equidigital number, since it uses as much as digits as its factorization.

144312321187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The spelling of 144312321187 in words is "one hundred forty-four billion, three hundred twelve million, three hundred twenty-one thousand, one hundred eighty-seven".