23123230011 has 48 divisors (see below), whose sum is σ = 39514924800. Its totient is φ = 12748929984.

The previous prime is 23123229989. The next prime is 23123230049. The reversal of 23123230011 is 11003232132.

It is not a de Polignac number, because 23123230011 - 2⁶ = 23123229947 is a prime.

It is a super-2 number, since 2×23123230011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23123231011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3407620 + ... + 3414398.

It is an arithmetic number, because the mean of its divisors is an integer number (823227600).

Almost surely, 2^23123230011 is an apocalyptic number.

23123230011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23123230011 is a deficient number, since it is larger than the sum of its proper divisors (16391694789).

23123230011 is a wasteful number, since it uses less digits than its factorization.

23123230011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688 (or 8685 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23123230011 its reverse (11003232132), we get a palindrome (34126462143).

It can be divided in two parts, 2312 and 3230011, that added together give a palindrome (3232323).

The spelling of 23123230011 in words is "twenty-three billion, one hundred twenty-three million, two hundred thirty thousand, eleven".