1344620311 has 2 divisors, whose sum is σ = 1344620312. Its totient is φ = 1344620310.

The previous prime is 1344620309. The next prime is 1344620323. The reversal of 1344620311 is 1130264431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1344620311 - 2¹ = 1344620309 is a prime.

Together with 1344620309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672310155 + 672310156.

It is an arithmetic number, because the mean of its divisors is an integer number (672310156).

Almost surely, 2^1344620311 is an apocalyptic number.

1344620311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344620311 is an equidigital number, since it uses as much as digits as its factorization.

1344620311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1344620311 is about 36669.0647685484. The cubic root of 1344620311 is about 1103.7394252935.

Adding to 1344620311 its reverse (1130264431), we get a palindrome (2474884742).

The spelling of 1344620311 in words is "one billion, three hundred forty-four million, six hundred twenty thousand, three hundred eleven".