23121122424 has 32 divisors (see below), whose sum is σ = 57814024320. Its totient is φ = 7705545056.

The previous prime is 23121122413. The next prime is 23121122441. The reversal of 23121122424 is 42422112132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23121122394 and 23121122403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36439 + ... + 218105.

It is an arithmetic number, because the mean of its divisors is an integer number (1806688260).

Almost surely, 2^23121122424 is an apocalyptic number.

23121122424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23121122424 is an abundant number, since it is smaller than the sum of its proper divisors (34692901896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23121122424 is a wasteful number, since it uses less digits than its factorization.

23121122424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186979 (or 186975 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

Adding to 23121122424 its reverse (42422112132), we get a palindrome (65543234556).

The spelling of 23121122424 in words is "twenty-three billion, one hundred twenty-one million, one hundred twenty-two thousand, four hundred twenty-four".