2123230145 has 16 divisors (see below), whose sum is σ = 2768494080. Its totient is φ = 1557273600.

The previous prime is 2123230129. The next prime is 2123230231. The reversal of 2123230145 is 5410323212.

It is not a de Polignac number, because 2123230145 - 2⁴ = 2123230129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123230145.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 357536 + ... + 363425.

It is an arithmetic number, because the mean of its divisors is an integer number (173030880).

Almost surely, 2^2123230145 is an apocalyptic number.

It is an amenable number.

2123230145 is a deficient number, since it is larger than the sum of its proper divisors (645263935).

2123230145 is a wasteful number, since it uses less digits than its factorization.

2123230145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721016.

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

The square root of 2123230145 is about 46078.5215149097. The cubic root of 2123230145 is about 1285.2837710486.

Adding to 2123230145 its reverse (5410323212), we get a palindrome (7533553357).

The spelling of 2123230145 in words is "two billion, one hundred twenty-three million, two hundred thirty thousand, one hundred forty-five".