1344230021 has 2 divisors, whose sum is σ = 1344230022. Its totient is φ = 1344230020.

The previous prime is 1344229987. The next prime is 1344230039. The reversal of 1344230021 is 1200324431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930921121 + 413308900 = 30511^2 + 20330^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344230021 - 2²² = 1340035717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1344229975 and 1344230002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344230081) 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, 672115010 + 672115011.

It is an arithmetic number, because the mean of its divisors is an integer number (672115011).

Almost surely, 2^1344230021 is an apocalyptic number.

It is an amenable number.

1344230021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344230021 is an equidigital number, since it uses as much as digits as its factorization.

1344230021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1344230021 is about 36663.7425940124. The cubic root of 1344230021 is about 1103.6326243518.

Adding to 1344230021 its reverse (1200324431), we get a palindrome (2544554452).

The spelling of 1344230021 in words is "one billion, three hundred forty-four million, two hundred thirty thousand, twenty-one".