2320040561 has 8 divisors (see below), whose sum is σ = 2339181504. Its totient is φ = 2300978320.

The previous prime is 2320040549. The next prime is 2320040573. The reversal of 2320040561 is 1650400232.

It is an interprime number because it is at equal distance from previous prime (2320040549) and next prime (2320040573).

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 2320040561 - 2¹⁴ = 2320024177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2320040531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40271 + ... + 79131.

It is an arithmetic number, because the mean of its divisors is an integer number (292397688).

Almost surely, 2^2320040561 is an apocalyptic number.

It is an amenable number.

2320040561 is a deficient number, since it is larger than the sum of its proper divisors (19140943).

2320040561 is a wasteful number, since it uses less digits than its factorization.

2320040561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39351.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2320040561 is about 48166.7993642924. The cubic root of 2320040561 is about 1323.8289044326.

Adding to 2320040561 its reverse (1650400232), we get a palindrome (3970440793).

The spelling of 2320040561 in words is "two billion, three hundred twenty million, forty thousand, five hundred sixty-one".