1420344023209 has 2 divisors, whose sum is σ = 1420344023210. Its totient is φ = 1420344023208.

The previous prime is 1420344023183. The next prime is 1420344023221. The reversal of 1420344023209 is 9023204430241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1086920928025 + 333423095184 = 1042555^2 + 577428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420344023209 - 2³³ = 1411754088617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420344023249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710172011604 + 710172011605.

It is an arithmetic number, because the mean of its divisors is an integer number (710172011605).

Almost surely, 2^{1420344023209} is an apocalyptic number.

It is an amenable number.

1420344023209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420344023209 is an equidigital number, since it uses as much as digits as its factorization.

1420344023209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 1420344023209 in words is "one trillion, four hundred twenty billion, three hundred forty-four million, twenty-three thousand, two hundred nine".