2120326563 has 8 divisors (see below), whose sum is σ = 2841453648. Its totient is φ = 1406375264.

The previous prime is 2120326543. The next prime is 2120326567. The reversal of 2120326563 is 3656230212.

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 2120326563 - 2⁵ = 2120326531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120326563.

It is not an unprimeable number, because it can be changed into a prime (2120326567) 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, 1793256 + ... + 1794437.

It is an arithmetic number, because the mean of its divisors is an integer number (355181706).

Almost surely, 2^2120326563 is an apocalyptic number.

2120326563 is a deficient number, since it is larger than the sum of its proper divisors (721127085).

2120326563 is a wasteful number, since it uses less digits than its factorization.

2120326563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587893.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2120326563 is about 46047.0038438985. The cubic root of 2120326563 is about 1284.6976155158.

Adding to 2120326563 its reverse (3656230212), we get a palindrome (5776556775).

The spelling of 2120326563 in words is "two billion, one hundred twenty million, three hundred twenty-six thousand, five hundred sixty-three".