2180315023 has 4 divisors (see below), whose sum is σ = 2189437920. Its totient is φ = 2171192128.

The previous prime is 2180315003. The next prime is 2180315051. The reversal of 2180315023 is 3205130812.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2180315023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180315003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4561090 + ... + 4561567.

It is an arithmetic number, because the mean of its divisors is an integer number (547359480).

Almost surely, 2^2180315023 is an apocalyptic number.

2180315023 is a deficient number, since it is larger than the sum of its proper divisors (9122897).

2180315023 is an equidigital number, since it uses as much as digits as its factorization.

2180315023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122896.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2180315023 is about 46693.8435235310. The cubic root of 2180315023 is about 1296.7007112861.

Adding to 2180315023 its reverse (3205130812), we get a palindrome (5385445835).

The spelling of 2180315023 in words is "two billion, one hundred eighty million, three hundred fifteen thousand, twenty-three".