1209338343 has 12 divisors (see below), whose sum is σ = 1811519528. Its totient is φ = 806225400.

The previous prime is 1209338329. The next prime is 1209338357. The reversal of 1209338343 is 3438339021.

It is an interprime number because it is at equal distance from previous prime (1209338329) and next prime (1209338357).

It is not a de Polignac number, because 1209338343 - 2²⁵ = 1175783911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1209338298 and 1209338307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209338363) 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 in 11 ways as a sum of consecutive naturals, for example, 2488108 + ... + 2488593.

Almost surely, 2^1209338343 is an apocalyptic number.

1209338343 is a deficient number, since it is larger than the sum of its proper divisors (602181185).

1209338343 is an frugal number, since it uses more digits than its factorization.

1209338343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976716 (or 4976704 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1209338343 is about 34775.5423106528. The cubic root of 1209338343 is about 1065.4079690715.

The spelling of 1209338343 in words is "one billion, two hundred nine million, three hundred thirty-eight thousand, three hundred forty-three".