2312302009 has 4 divisors (see below), whose sum is σ = 2315457316. Its totient is φ = 2309146704.

The previous prime is 2312302007. The next prime is 2312302043. The reversal of 2312302009 is 9002032132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2205241600 + 107060409 = 46960^2 + 10347^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312302009 - 2¹ = 2312302007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312302001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576554 + ... + 1578019.

It is an arithmetic number, because the mean of its divisors is an integer number (578864329).

Almost surely, 2^2312302009 is an apocalyptic number.

It is an amenable number.

2312302009 is a deficient number, since it is larger than the sum of its proper divisors (3155307).

2312302009 is an equidigital number, since it uses as much as digits as its factorization.

2312302009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155306.

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

The square root of 2312302009 is about 48086.4014977207. The cubic root of 2312302009 is about 1322.3553769976.

The spelling of 2312302009 in words is "two billion, three hundred twelve million, three hundred two thousand, nine".