2123230123 has 24 divisors (see below), whose sum is σ = 2528064000. Its totient is φ = 1777215888.

The previous prime is 2123230121. The next prime is 2123230129. The reversal of 2123230123 is 3210323212.

It is not a de Polignac number, because 2123230123 - 2¹ = 2123230121 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2123230123.

It is not an unprimeable number, because it can be changed into a prime (2123230121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1516978 + ... + 1518376.

It is an arithmetic number, because the mean of its divisors is an integer number (105336000).

Almost surely, 2^2123230123 is an apocalyptic number.

2123230123 is a deficient number, since it is larger than the sum of its proper divisors (404833877).

2123230123 is a wasteful number, since it uses less digits than its factorization.

2123230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2123230123 is about 46078.5212761868. The cubic root of 2123230123 is about 1285.2837666095.

Adding to 2123230123 its reverse (3210323212), we get a palindrome (5333553335).

The spelling of 2123230123 in words is "two billion, one hundred twenty-three million, two hundred thirty thousand, one hundred twenty-three".