202344340309 has 2 divisors, whose sum is σ = 202344340310. Its totient is φ = 202344340308.

The previous prime is 202344340283. The next prime is 202344340349. The reversal of 202344340309 is 903043443202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162749310084 + 39595030225 = 403422^2 + 198985^2 .

It is a cyclic number.

It is not a de Polignac number, because 202344340309 - 2⁷ = 202344340181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202344340349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101172170154 + 101172170155.

It is an arithmetic number, because the mean of its divisors is an integer number (101172170155).

Almost surely, 2^202344340309 is an apocalyptic number.

It is an amenable number.

202344340309 is a deficient number, since it is larger than the sum of its proper divisors (1).

202344340309 is an equidigital number, since it uses as much as digits as its factorization.

202344340309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 202344340309 in words is "two hundred two billion, three hundred forty-four million, three hundred forty thousand, three hundred nine".