2012203309 has 8 divisors (see below), whose sum is σ = 2093627160. Its totient is φ = 1931582016.

The previous prime is 2012203307. The next prime is 2012203321. The reversal of 2012203309 is 9033022102.

It can be written as a sum of positive squares in 4 ways, for example, as 1335683209 + 676520100 = 36547^2 + 26010^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012203309 - 2¹ = 2012203307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2012203309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012203307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195522 + ... + 205555.

It is an arithmetic number, because the mean of its divisors is an integer number (261703395).

Almost surely, 2^2012203309 is an apocalyptic number.

2012203309 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2012203309 is a deficient number, since it is larger than the sum of its proper divisors (81423851).

2012203309 is a wasteful number, since it uses less digits than its factorization.

2012203309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401279.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2012203309 is about 44857.5892018285. The cubic root of 2012203309 is about 1262.4783899056.

The spelling of 2012203309 in words is "two billion, twelve million, two hundred three thousand, three hundred nine".