2331530345 has 4 divisors (see below), whose sum is σ = 2797836420. Its totient is φ = 1865224272.

The previous prime is 2331530293. The next prime is 2331530353. The reversal of 2331530345 is 5430351332.

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 1693816336 + 637714009 = 41156^2 + 25253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331530345 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233153030 + ... + 233153039.

It is an arithmetic number, because the mean of its divisors is an integer number (699459105).

Almost surely, 2^2331530345 is an apocalyptic number.

It is an amenable number.

2331530345 is a deficient number, since it is larger than the sum of its proper divisors (466306075).

2331530345 is an equidigital number, since it uses as much as digits as its factorization.

2331530345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466306074.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 2331530345 is about 48285.9228450695. The cubic root of 2331530345 is about 1326.0106863287.

Adding to 2331530345 its reverse (5430351332), we get a palindrome (7761881677).

The spelling of 2331530345 in words is "two billion, three hundred thirty-one million, five hundred thirty thousand, three hundred forty-five".