144320997311 has 2 divisors, whose sum is σ = 144320997312. Its totient is φ = 144320997310.

The previous prime is 144320997307. The next prime is 144320997343. The reversal of 144320997311 is 113799023441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144320997311 - 2² = 144320997307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144320997391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72160498655 + 72160498656.

It is an arithmetic number, because the mean of its divisors is an integer number (72160498656).

Almost surely, 2^144320997311 is an apocalyptic number.

144320997311 is a deficient number, since it is larger than the sum of its proper divisors (1).

144320997311 is an equidigital number, since it uses as much as digits as its factorization.

144320997311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 144320997311 in words is "one hundred forty-four billion, three hundred twenty million, nine hundred ninety-seven thousand, three hundred eleven".