1320144311 has 2 divisors, whose sum is σ = 1320144312. Its totient is φ = 1320144310.

The previous prime is 1320144229. The next prime is 1320144323. The reversal of 1320144311 is 1134410231.

It is a strong prime.

It is an emirp because it is prime and its reverse (1134410231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320144311 - 2²⁶ = 1253035447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320144341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660072155 + 660072156.

It is an arithmetic number, because the mean of its divisors is an integer number (660072156).

Almost surely, 2^1320144311 is an apocalyptic number.

1320144311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320144311 is an equidigital number, since it uses as much as digits as its factorization.

1320144311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1320144311 is about 36333.7902096657. The cubic root of 1320144311 is about 1097.0012846823.

Adding to 1320144311 its reverse (1134410231), we get a palindrome (2454554542).

The spelling of 1320144311 in words is "one billion, three hundred twenty million, one hundred forty-four thousand, three hundred eleven".